Jansen with the 2018 Los Angeles Dodgers
|Los Angeles Dodgers – No. 74|
|Born: September 30, 1987|
|July 24, 2010, for the Los Angeles Dodgers|
|MLB statistics |
(through 2020 season)
|Earned run average||2.39|
|Career highlights and awards|
Kenley Geronimo Jansen (born September 30, 1987) is a Curaçaoan professional baseball pitcher for the Los Angeles Dodgers of Major League Baseball (MLB). He converted from a catcher to a relief pitcher in the minor leagues, and made his major league debut in 2010. Jansen has served as the Dodgers' closer since 2012, and led the National League (NL) in saves in 2017. He is a three-time MLB All-Star and two-time NL Reliever of the Year (2016, 2017). In 2019, Jansen became the 30th pitcher to reach 300 career saves.
Jansen was born in Willemstad, Curaçao, the youngest of three sons of Isidor and Bernadette Jansen. His father worked in construction until suffering a stroke when Kenley was 12; his mother is a travel agent. Jansen began playing baseball at the age of six, alongside his brothers. He began as an outfielder before moving to shortstop. Jansen then met Andrelton Simmons, and was shifted to third base. He later played first base and catcher.
Jansen was signed as an undrafted free agent catcher by the Dodgers organization on November 17, 2004, and was assigned to the Rookie Class Gulf Coast Dodgers, where he played in 37 games and hit .304 before being promoted to the Ogden Raptors of the Pioneer League on August 26. He had two hits in 11 at-bats in three games for Ogden. He was back with the Gulf Coast team the following season, hitting .245 in 35 games. After the season he played for the North Shore Honu in the Hawaii Winter Baseball League, where he hit .121 in nine games.
Jansen split 2007 between the Raptors and the Class-A Great Lakes Loons of the Midwest League, hitting .207 in 73 games. After the season, he again played in Hawaii Winter Baseball, this time for the West Oahu CaneFires In 2008 with the Loons, he hit .227 and 9 home runs in 79 games. He was selected to the mid-season Midwest League All-Star game.
In 2009, he was the starting catcher for the Netherlands team in the World Baseball Classic. In the Netherlands' upset of the favored Dominican Republic team, Jansen threw out Willy Taveras on an attempted steal of third base in the ninth inning, a key play in the game. He began 2009 with the Inland Empire 66ers of San Bernardino, but hit just .202 in 38 games. Despite that, he appeared in eight games for the Triple-A Albuquerque Isotopes, but had just five hits in 27 at-bats.
The Dodgers convinced Jansen that he had no future at catcher because of his poor offensive numbers and that he should switch to pitching. Under the tutelage of former major leaguer Charlie Hough, he made the conversion in the second half of the 2009 season at Inland Empire. He pitched 11 2⁄3 innings for the 66ers, allowing six earned runs. He continued the conversion in the Arizona Fall League for the Peoria Javelinas.
Jansen was added to the Dodgers 40-man roster on November 19, 2009. He started with Inland Empire again and allowed only five runs in 18 innings while striking out 28 batters. On May 15, 2010, he was promoted to the Double-A Chattanooga Lookouts, where he was selected to the mid-season Southern League All-Star Game. He pitched 27 innings in 22 games for the Lookouts, with a 1.67 ERA.
Los Angeles Dodgers
On July 23, 2010, Jansen was promoted to the Dodgers. He made his Major League debut in relief on July 24 against the New York Mets, where he pitched a scoreless inning, retiring all three batters he faced and striking out two. On July 25, Jansen recorded his first Major League save, when he pitched a 1-2-3 inning against the Mets.
On August 26, Jansen walked and scored a run in his first Major League plate appearance, at Miller Park in Milwaukee against Yovani Gallardo of the Brewers and collected his first major league hit on August 31, at Dodger Stadium. The hit was a single up the middle against Kyle Kendrick of the Philadelphia Phillies. Jansen recorded his first win against the Houston Astros on September 11 in Minute Maid Park. He appeared in 25 games with the Dodgers in 2010, working 27 innings with a 1–0 record and a 0.67 ERA. He also saved four games in 2010.
In 2011, Jansen became a key member of the Dodgers' bullpen. He was 2–1 with a 2.85 ERA in 53 2⁄3 innings and saved five games. Jansen also struck out 96 batters, setting a new Major League season record with 16 1⁄3 strikeouts per nine innings.
In May 2012, Jansen became the Dodgers' closer after Javy Guerra struggled in the role. At the end of the season, after missing some time due to heart problems, Jansen was replaced as closer by Brandon League. He appeared in 65 games, compiling a 5–3 record, 2.35 ERA, 99 strikeouts and 25 saves.
Jansen began 2013 as the setup man in the bullpen but resumed the role as closer when League struggled. He was in 75 games with a 4–3 record, 1.88 ERA and 28 saves. He did not allow any runs, in three appearances in the 2013 National League Division Series (NLDS) against the Atlanta Braves but was less effective in the Championship Series (NLCS) against the Cardinals, allowing two runs in two innings.
On February 11, 2014, Jansen avoided his first arbitration hearing by signing a $4.3 million contract with the Dodgers. Fully established as the Dodgers' closer in 2014, Jansen worked in 68 games with a 2.76 ERA, 101 strikeouts and 44 saves. He became just the fourth Dodger pitcher in history with 40+ saves in a season, joining Éric Gagné (who did it three times), Todd Worrell and Jeff Shaw. Jansen only pitched one inning in the NLDS against the Cardinals.
On January 16, 2015, he again avoided arbitration by signing a one-year $7.425 million contract with the Dodgers. However, on February 17, he underwent surgery to remove a growth from a bone in his left foot. The recovery time kept him out of action until May. Jansen was eventually activated off the disabled list on May 15 and rejoined the Dodgers roster. Jansen struck out 23 batters in his first 14 games of the season, without giving up a single walk. This broke Jay Howell's team records (set in the 1991 season) of 13 games without a walk to start a season and 20 strikeouts without a walk to start a season. He wound up striking out 27 before he finally walked a batter on June 30, eight shy of the major league record. He made 54 appearances for the team in 2015 with a 2.41 ERA and 36 saves. He also struck out 80 batters, while only walking 8 all season. He became the first Dodgers pitcher with five seasons of 80 or more strikeouts in relief. He appeared in three games, with two saves in the 2015 NLDS and did not allow a run in 3 2⁄3 innings. In his final year of arbitration, Jansen signed a one-year, $10.65 million, contract with the Dodgers on January 15, 2016.
On June 20, 2016, Jansen picked up his 162nd career save against the Washington Nationals, breaking the all-time franchise record held by Éric Gagné. He was also selected to the National League team for the 2016 Major League Baseball All-Star Game, his first all-star selection. On August 24, 2016, Jansen tied Jim Brewer's franchise record for strikeouts by a reliever with the 604th of his career. In 71 games, he was 3–2 with a 1.83 ERA and 47 saves, earning him the Trevor Hoffman National League Reliever of the Year Award. Of all MLB pitchers, he held right-handed batters to the lowest batting average, .107 (in 30 or more innings). In the 2016 NLDS against the Washington Nationals, Jansen pitched in four games and worked 5 1⁄3 innings, allowing four runs and saving two games. In the 2016 NLCS against the Chicago Cubs he pitched 6 1⁄3 innings over three games, with one save, and struck out 10 while only allowing one hit.
On June 2, 2017, Jansen recorded his 36th strikeout of the season, setting an MLB season record for most strikeouts without giving up a walk. The previous record was held by St. Louis Cardinals starting pitcher Adam Wainwright, who struck out 35 batters before giving up a walk in the 2013 season. The streak eventually reached 51 strikeouts before he recorded his first walk of the season on June 25 against the Colorado Rockies. He was named to his second straight All-Star Game. Jansen pitched in 65 games for the Dodgers in 2017, with five wins, a 1.32 ERA, 109 strikeouts (with only seven walks) and 41 saves. For the second straight year, he was awarded with the Trevor Hoffman National League Reliever of the Year Award.
Jansen started the playoffs by finishing all three games of the Dodgers 2017 NLDS sweep of the Diamondbacks. He saved two of the games and did not allow an earned run in 3 2⁄3 innings. He pitched 4 1⁄3 innings over four games in the 2017 NLCS against the Cubs and did not allow a batter to reach base, while striking out eight. Jansen allowed two runs to score, including a solo homer by Marwin González in Game Two of the 2017 World Series against the Houston Astros. It was his first blown save in the postseason and snapped his MLB record of converting his first 12 post-season save opportunities. In Game Five of the series, he picked up the loss in the Dodgers 10 inning defeat. In his second inning of work, he hit Brian McCann with two outs and then after a walk, he gave up a walk-off single to Alex Bregman. Overall, he pitched 8 2⁄3 innings over six games, with two saves and three runs allowed as the Dodgers lost the series in seven games.
Jansen was bothered by an injury during spring training and was slow-played after his 2017 workload, resulting in two blown saves during a shaky April. He turned it around in May, June and July and was chosen for his third straight all-star game in 2018.
Jansen's heart problems resurfaced during a four-game set in Colorado, and Jansen was placed on the 10-day disabled list with an irregular heartbeat. He struggled upon returning, losing his first two games back and blowing a save in his third. He struggled for the rest of the season. He finished the season with a 1–5 record, 3.01 ERA and 38 saves.
He was effective against Atlanta and Milwaukee in the postseason, not allowing a run, but again struggled in the 2018 World Series, blowing two save opportunities as he allowed game-tying home runs to Jackie Bradley Jr. in Game 3 (which went 18 innings) and Steve Pearce in Game 4 as the Dodgers lost the series to the Boston Red Sox in five games.
On April 7, 2019, Jansen recorded a four-out save against the Colorado Rockies at Coors Field in Denver. On May 3 and 4, Jansen converted saves against the San Diego Padres. But on May 5, pitching for the third day in a row, Jansen walked a batter and allowed two bunt singles to load the bases with no outs. He retired the next two hitters before he gave up a walk-off grand slam to Hunter Renfroe, as the Dodgers lost 8–5.
Jansen recorded two extended saves in a series against the Mets, with a 5-out save in the first game of the series and a 4-out save in the fourth game. This was his first five-out save since June 2018 in Pittsburgh. He debuted the intentional balk in the top of the ninth against the Chicago Cubs on June 15, 2019. The intentional balk was an idea he came up with bench coach Bob Geren, in which he has a runner on second and two outs and balks the runner to third to prevent the runner from stealing signs. On September 25, in a game against the San Diego Padres, Jansen picked up his 300th career save, becoming the 30th pitcher all time and the first in Dodgers history. He pitched in 62 games, with a 5–3 record and 33 saves, but a career-high ERA of 3.71.
Jansen was late reporting to camp after the pandemic-imposed shutdown, suffering with a COVID-19 infection, which affected his conditioning during the shutdown. He appeared in 24.1 innings over 27 games during the season, with a 3–1 record and a 3.33 ERA with 11 saves (3rd in the NL), while leading the National League with 24 games finished. Jansen pitched one scoreless inning in the first game of the Wild Card Series to pick up the save and in the NLDS he allowed two runs to score in 1 1⁄3 innings. He picked up a save and pitched three perfect innings over three games in the NLCS. In Game 4 of the 2020 World Series against the Tampa Bay Rays, Jansen blew his fourth career World Series save, setting a new World Series record. Nevertheless, the Dodgers defeated the Rays in six games, earning Jansen his first World Series ring.
Jansen has represented the Netherlands at three of the four World Baseball Classic's. In 2009, he was the starting catcher for the Netherlands team in the World Baseball Classic. In the Netherlands' upset of the favored Dominican Republic team, Jansen threw out Willy Taveras on an attempted steal of third base in the ninth inning, a key play in the game. Jansen was a late addition to the Netherlands national baseball team for the 2013 World Baseball Classic, he had transitioned to pitching in late 2009, he was added to the roster for the semi-finals but did not appear in the game.
After initially saying he would not pitch in the 2017 tournament, having signing a five-year $80 million contract with the Dodgers in the offseason, Jansen again joined the team when they advanced to the semi finals.  Jansen appeared in the teams game against Team Puerto Rico, which including Dodgers teammate Kiké Hernandez. Jansen pitched a scoreless 9th inning, striking out two, but team Netherlands lost on a walk off sacrifice fly in the 11th inning.
Jansen relies almost exclusively on a cut fastball that mostly ranges from 90 to 94 miles per hour (mph). Earlier in his career, he was able to throw the pitch at 98 mph, and he exceeded 100 mph in 2014. In 2012, he used this pitch about 93% of the time. His other main pitch is a slider in the low to mid 80s. He experimented with a changeup in the 2009–2011 seasons and debuted a four-seam fastball at the end of the 2012 season. He now throws four-seamer 92–96. Jansen relies both on movement and exceptional command, throwing over 70% strikes.
Jansen has recorded extremely high strikeout rates, garnering 14.6 strikeouts per 9 innings pitched through the 2012 season. This is the second-highest total in history among pitchers who have thrown at least 140 innings (behind only Craig Kimbrel).
Jansen was diagnosed in 2011 with an irregular heartbeat (specifically, atrial fibrillation), and he missed some time that season while he was placed on blood thinners to prevent clots. The problem resurfaced late in the 2012 season, and he again missed considerable time while being treated. On October 24, 2012, Jansen underwent a 3-hour catheter ablation procedure in which Dr. Koonwalee Nademanee identified abnormal tissue in his left atrium and cauterized it to stop it from generating abnormal electrical signals.
Jansen suffered a recurrence of his irregular heartbeat prior to a game in Denver on August 9, 2018. He was placed on the 10-day disabled list and the team reported he would likely miss a month of the season. Doctors determined the condition could be controlled with medication until the offseason, so Jansen returned to the hill just 11 days later. However, the heart medication he took, which included beta blockers, had the side effects of leaving him feeling fatigued and unemotional. He gave up four home runs in his first two outings back, blowing both save opportunities, and after he protested the effects of his medication his doctors switched him to aspirin. Jansen stayed in Los Angeles when the Dodgers returned to Denver in September because he was at high risk of a stroke if he returned to elevation. Jansen completed the season and provided scoreless relief in seven of nine postseason appearances, allowing two runs in 10.2 innings (1.69 ERA).
On November 26, 2018, Jansen underwent a 5 1⁄2-hour heart ablation procedure, again performed by Dr. Koonlawee Nademanee, in Los Angeles. After the procedure the doctor told Jansen that small veins near the site of his 2012 procedure had grown and were agitated by dehydration, which caused the irregular signals that occurred in Denver. Jansen dedicated himself to a healthier diet after recovering from the operation and reported to spring training 25 pounds lighter. He no longer has to take blood-thinning medication.
During the 2018 MLB Players Weekend, Jansen wore the nickname "KENLEYFORNIA" on his jersey, a portmanteau blending "Kenley" and "California" in a reference to Jansen's entrance song, "California Love" by 2Pac and Dr. Dre.
Jansen lives with his parents in Curaçao during the offseason, and they live with him in Los Angeles when they visit him during the season. Kenley is married to a Curaçao native named Gianni Jansen - Fransisca. He has a daughter, Natalia Hannah Jansen, who was born on March 16, 2013, and two sons, Kaden Isaiah Jansen, born on August 16, 2015, and Kyrian Jeremiah Jansen, born on August 22, 2018. He throws right-handed but writes with his left hand. A local team in Curaçao, the Wildcats, have renamed themselves in honour of Jansen, and competed in the Latin American Series as Wildcats KJ74.
- "Kenley Jansen minor league statistics". Baseball-Reference.com. 2015. Retrieved January 25, 2015.
- Plaschke, Bill (September 11, 2013). "No man is an island, especially Dodgers closer Kenley Jansen". Los Angeles Times. Retrieved January 25, 2015.
- Rivera, Marly (June 25, 2017). "Kenley Jansen changed countries -- then changed positions". ESPN.com. Retrieved June 27, 2017.
- "Kenley Jansen Stats". Baseball Reference.
- "Kenley Jansen bio". MLB.com.
- Wehofer, Randy (September 27, 2007). "Gabella Led Canefires Open Saturday". milb.com. Retrieved February 19, 2017.
- McFarland, Jodi (June 17, 2008). "Rosters and bios for the 44th Midwest League All-Star Game at Dow Diamond in Midland". mlive.com. Retrieved February 19, 2017.
- McFarland, Jodi (March 7, 2009). "Kenley Jansen plays a big role in the Netherlands' upset of the Dominican Republic". Mlive.com. Retrieved August 27, 2013.
- Kepner, Tyler (October 18, 2016). "Hoe Kenley Jansen went from Minor League Catcher to Major League Closer". New York Times. Retrieved February 19, 2017.
- Haft, Chris (November 19, 2009). "Dodgers add three to 40-man roster". MLB.com. Retrieved June 26, 2017.
- Zucosky, Griffin (June 30, 2010). "Southern League reveals 2010 All-Stars". milb.com. Retrieved February 19, 2017.
- Hernandez, Dylan (July 23, 2010). "Dodgers call up Kenley Jansen; designate Justin Miller for assignment". Los Angeles Times. Retrieved August 27, 2013.
- "July 24, 2010 New York Mets at Los Angeles Dodgers play-by-play and box score". Baseball Reference. Retrieved February 19, 2017.
- "July 25, 2010 New York Mets at Los Angeles Dodgers play-by-play and box score". Baseball Reference. Retrieved February 19, 2017.
- "August 26, 2010 Los Angeles Dodgers at Milwaukee Brewers play-by-play and box score". Baseball Reference. Retrieved February 19, 2017.
- "August 31, 2010 Philadelphia Phillis at Los Angeles Dodgers play-by-play and box score". Baseball Reference. Retrieved February 19, 2017.
- "September 11, 2010 Los Angeles Dodgers at Houston Astros". Baseball Reference. Retrieved February 19, 2017.
- "Jansen struck out hitters at record pace in '11". Losangeles.dodgers.mlb.com. Retrieved August 27, 2013.
- Hernandez, Dylan (May 7, 2012). "Kenley Jansen replacing Javy Guerra as Dodgers closer". Los Angeles Times. Retrieved November 28, 2012.
- Dilbeck, Steve (September 30, 2012). "Brandon League, the Dodgers' unexpected closer". Los Angeles Times. Retrieved November 28, 2012.
- Dilbeck, Steve (June 11, 2013). "Kenley Jansen replaces Brandon League as Dodgers closer". Los Angeles Times. Retrieved February 19, 2017.
- "2013 NL Division Series (3-1): Los Angeles Dodgers (92-70) over Atlanta Braves (96-66)". Baseball Reference. Retrieved February 19, 2017.
- "2013 NLCS (4-2): St. Louis Cardinals (97-65) over Los Angeles Dodgers (92-70)". Baseball Reference. Retrieved February 19, 2017.
- Gurnick, Ken (February 11, 2014). "Jansen, Dodgers reach $4.3 million deal". MLB.com. Retrieved July 6, 2014.
- Dilbeck, Steve (September 6, 2014). "Dodgers' Kenley Jansen has emerged as one of baseball's best closers". Los Angeles Times. Retrieved June 26, 2017.
- "2014 NL Division Series (3-1): St. Louis Cardinals (90-72) over Los Angeles Dodgers (94-68)". Baseball Reference. Retrieved February 19, 2017.
- Stephen, Eric (January 16, 2015). "Kenley Jansen, Dodgers avoid arbitration with $7.425 contract". truebluela.com. Retrieved January 16, 2015.
- Weisman, Jon (February 17, 2015). "Kenley Jansen expected to miss 8-12 weeks after foot surgery". Retrieved February 17, 2015.
- Hernandez, Dylan (May 15, 2015). "Dodgers reinstate Kenley Jansen from disabled list". Los Angeles Times. Retrieved June 26, 2017.
- Stephen, Eric (June 25, 2015). "Stingy Kenley Jansen off to great start". SB Nation. Retrieved June 25, 2015.
- Stephen, Eric (June 30, 2015). "Howie Kendrick, Yasmani Grandal do extra in Dodgers win". SB Nation. Retrieved July 1, 2015.
- "2015 Los Angeles Dodgers Batting, Pitching, & Fielding Statistic". Baseball Reference. Retrieved October 5, 2015.
- Stephen, Eric (October 3, 2015). "Dodgers postgame notes: Zack Greinke, Kenley Jansen, Yasiel Puig, home field advantage". SB Nation. Retrieved October 5, 2015.
- Hernandez, Dylan (January 15, 2016). "Dodgers avoid salary arbitration with Kenley Jansen". Los Angeles Times. Retrieved June 26, 2017.
- McCullough, Andy (June 20, 2016). "Kenley Jansen sets Dodgers' saves record in 4-1 win". Los Angeles Times. Retrieved June 26, 2017.
- Weisman, Jon (July 5, 2016). "Jansen, Kershaw, Seager named to NL All-Star team". Dodgers.com. Archived from the original on July 8, 2016. Retrieved July 5, 2016.
- Baer, Jack and Chris Haft (August 25, 2016). "Hill outduels Cueto in Dodgers debut". mlb.com. Retrieved August 25, 2016.
- Plunkett, Bill (October 29, 2016). "Dodgers' Kenley Jansen wins award as NL's top reliever". Orange County Register. Retrieved June 26, 2017.
- "Splits Leaderboards | FanGraphs". www.fangraphs.com.
- "2016 NL Division Series Los Angeles Dodgers over Washington Nationals (3-2)". Baseball Reference. Retrieved October 29, 2020.
- "2016 NLCS Chicago Cubs over Los Angeles Dodgers (4-2)". Baseball Reference. Retrieved October 29, 2020.
- Gurnick, Ken. "Jansen officially returns to Dodgers on 5-year pact". MLB.com. Retrieved January 10, 2017.
- Shaikin, Bill (June 11, 2017). "Corey Seager hits first career grand slam in Dodgers' 9-7 win over Reds". Los Angeles Times. Retrieved June 26, 2017.
- McCalvy, Adam; Gurnick, Ken. "Wonder whiff-men: Dodgers, Crew fan 42". MLB.com. Retrieved June 17, 2017.
- Plunkett, Bill (June 8, 2017). "Dodgers and Kenley Jansen embracing broad interpretation of closer role". The Orange County Register. Retrieved June 17, 2017.
- Axisa, Mike (June 25, 2017). "After 112 batters and 51 strikeouts, Dodgers' Jansen issues first walk of 2017". CBS Sports. Retrieved June 26, 2017.
- Stephen, Eric (July 2, 2017). "All-Star Game rosters 2017: Dodgers send 4 players to Miami". SB Nation. Retrieved July 2, 2017.
- Stephen, Eric (October 28, 2017). "Kenley Jansen wins Trevor Hoffman Award as NL reliever of the year". Retrieved October 28, 2017.
- Gurnick, Ken (October 26, 2017). "Resilient Dodgers putting loss behind them". mlb.com. Retrieved November 17, 2017.
- "2017 World Series Game 5, Dodgers at Astros, October 29". Baseball Reference. Retrieved November 17, 2017.
- Williams, James H. (July 8, 2018). "2018 MLB All-Star Game Rosters: Dodgers' Matt Kemp, Angel's Mike Trout named". OC Register. Retrieved July 8, 2018.
- Bonesteel, Matt (August 21, 2018). "odgers' Kenley Jansen takes fatalistic view of heart troubles upon his return". Denver Post. Retrieved October 7, 2018.
- "2018 World Series Game 3, Red Sox at Dodgers, October 26". Baseball Reference. Retrieved October 7, 2020.
- "2018 World Series Game 4, Red Sox at Dodgers, October 27". Baseball Reference. Retrieved October 7, 2020.
- "2018 World Series Boston Red Sox over Los Angeles Dodgers (4-1)". Baseball Reference. Retrieved October 7, 2020.
- "Kenley Jansen closes at Colorado". MLB.com. Retrieved April 8, 2019.
- "Kenley Jansen 2019 Pitching Gamelogs". Baseball Reference. Retrieved October 7, 2020.
- "Los Angeles Dodgers at San Diego Padres Box Score, May 5, 2019". Baseball Reference. Retrieved October 7, 2020.
- Gurnick, Ken (June 15, 2019). "Ever seen an intentional balk? You have now". mlb.com. Retrieved October 7, 2020.
- Gurnick, Ken (September 26, 2019). "After talk with mentor, Jansen gets 300th save". mlb.com. Retrieved September 26, 2019.
- Stephen, Eric (August 6, 2020). "Kenley Jansen still feeling lingering effects of coronavirus". SB Nation. Retrieved October 7, 2020.
- "2020 National League Wild Card Series (NLWC) Game 1, Brewers at Dodgers, September 30". Baseball Reference. Retrieved October 25, 2020.
- "2020 NL Division Series Los Angeles Dodgers over San Diego Padres (3-0)". Baseball Reference. Retrieved October 25, 2020.
- "2020 NLCS Los Angeles Dodgers over Atlanta Braves (4-3)". Baseball Reference. Retrieved October 25, 2020.
- McFarland, Jodi (March 7, 2009). "Kenley Jansen plays a big role in the Netherlands' upset of the Dominican Republic". Mlive.com. Retrieved August 27, 2013.
- "RHP Kenley Jansen added to Netherlands World Baseball Classic Roster". Mister Baseball. March 13, 2013. Retrieved February 19, 2017.
- "Netherlands add All-Star closer Kenley Jansen to WBC roster". usatoday.com. March 15, 2017. Retrieved October 19, 2020.
- "Puerto Rico wins semifinal in 11, advances to final". purplerow.com. March 20, 2017. Retrieved October 19, 2020.
- Newport, Kyle (August 6, 2014). "Dodgers Closer Kenley Jansen Unbelievably Threw a 98 Mph Cutter". Bleacher Report. Retrieved April 14, 2018.
- "Brooks Baseball · Home of the PitchFX Tool - Player Card: Kenley Jansen". Brooks Baseball. Retrieved November 28, 2012.
- "Major League Leaderboards » 2012 » Pitchers » Dashboard". Fangraphs. Retrieved November 28, 2012.
- "Recurrence of heart condition sidelines Jansen". Losangeles.dodgers.mlb.com. Retrieved August 27, 2013.
- "Jansen excited for first action since heart trouble". Mlb.mlb.com. Retrieved August 27, 2013.
- "Dodgers' Jansen undergoes heart procedure". ESPN.com. October 24, 2012.
- "Jansen doing well after heart surgery". MLB.com.
- "Kenley Jansen of Los Angeles Dodgers undergoes heart procedure - ESPN Los Angeles". Espn.go.com. October 23, 2012. Retrieved August 27, 2013.
- Rogers, Anne (August 10, 2018). "Kenley Jansen to be sidelined about a month". mlb.com. Retrieved August 10, 2018.
- "As long as Dodgers keep playing, Kenley Jansen can try to forget about upcoming surgery". October 20, 2018.
- "Jansen: 'I thought my season was over'". ESPN.com. September 7, 2018.
- "Jansen: 'I thought my season was over'". ESPN.com. September 7, 2018. Retrieved April 8, 2019.
- "Kenley Jansen Stats, Fantasy & News". MLB.com. Retrieved April 8, 2019.
- "Leaner Kenley Jansen ready to 'compete' again for Dodgers in 2019". Orange County Register. February 13, 2019. Retrieved April 8, 2019.
- "Kenley Jansen Reports To Dodgers Camp; Tested Positive For COVID-19". MLB Trade Rumors. Retrieved July 13, 2020.
- "2018 MLB Players' Weekend nicknames". MLB.com. Retrieved April 8, 2019.
- Hernandez, Dylan (April 8, 2013). "Dodgers' Kenley Jansen has a healthy outlook". Los Angeles Times. Retrieved January 25, 2015.
|Wikimedia Commons has media related to Kenley Jansen.|