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|Duration||September 16 – December 16, 1973|
|Start date||December 22, 1973|
|AFC Champions||Miami Dolphins|
|NFC Champions||Minnesota Vikings|
|Super Bowl VIII|
|Date||January 13, 1974|
|Site||Rice Stadium, Houston, Texas|
|Date||January 20, 1974|
Kansas City, Missouri
The season ended with Super Bowl VIII when the Miami Dolphins repeated as league champions by defeating the Minnesota Vikings 24–7 at Rice Stadium in Houston, Texas. The Pro Bowl took place on January 20, 1974, at Arrowhead Stadium in Kansas City, Missouri; the AFC beat the NFC 15–13.
Major rule changes
Jersey numbering system
- A jersey numbering system is adopted (players who played in 1972 are grandfathered):
- 1–19: Quarterbacks and specialists
- 20–49: Running backs and defensive backs
- 50–59: Centers and linebackers
- 60–79: Defensive linemen and offensive linemen other than centers
- 80–89: Wide receivers and tight ends
- Numbers 0, 00, and 90 to 99 are no longer allowed to be issued, even though these numbers were rarely issued anyway (two players wearing 00 at the time, Jim Otto and Ken Burrough, were grandfathered). Numbers 90 to 99 would be allowed again for defensive linemen from 1979 and for linebackers from 1984 in addition to the above-mentioned numbers.
Other new rules
- Defensive players cannot jump or stand on a teammate while trying to block a kick.
- The clock is to start at the snap following all changes of possession. Previously, the clock started on a change of possession when the ball was spotted ready for play by the referee, except if the ball went out of bounds on the change of possession, there was an incomplete pass on fourth down, or the change of possession occurred on the final play of the first or third quarters; in those cases, the clock started on the snap.
- If there is a foul by the offensive team, and it is followed by a change of possession, the period can be extended by one play by the other team.
- If the receiving team commits a foul after the ball is kicked, possession will be presumed to have changed; the receiving team keeps the ball.
Television Blackout rules
Up until the 1972 season, all NFL games (including championship games and Super Bowls) were blacked-out on television in each team's home city. In 1973, the league changed their policy to black out games in the team's home city only if tickets to the game had not sold out. This expanded the league's television presence in teams' home cities on gameday.
The policy was put into effect when, in 1972, the Washington Redskins made the playoffs for only the second time in 27 seasons. Because all home games were blacked-out, politicians — including devout football fan President Richard Nixon — were not able to watch their home team win. NFL commissioner Pete Rozelle refused to lift the blackout, despite a plea from United States Attorney General Richard Kleindienst. Kleindienst was to suggest that the United States Congress re-evaluate the NFL's antitrust exemption. Rozelle agreed to lift the blackout for Super Bowl VII on an "experimental basis". But Congress intervened before the 1973 season anyway, passing Public Law 93-107, which eliminated the blackout of games in the home market so long as the game was sold out by 72 hours before game time.
Starting in 1970, and until 2002, there were three divisions (Eastern, Central and Western) in each conference. The winners of each division, and a fourth “wild card” team based on the best non-division winner, qualified for the playoffs. The tiebreaker rules were changed to start with head-to-head competition, followed by division records, records against common opponents, and records in conference play.
National Football Conference
|1||4 teams||1–0–0||2 teams||1–0–0||2 teams||1–0–0||5 teams||1–0–0|
|2||Dallas, St. Louis (tie)||2–0–0||Minnesota||2–0–0||Los Angeles||2–0–0||Dallas, St. Louis (tie)||2–0–0|
|3||Dallas||3–0–0||Minnesota||3–0–0||Los Angeles||3–0–0||St. Louis||2–1–0|
- For the last time until 1997, the last two unbeaten teams in the league met in Week 7, with the Vikings tipping the Rams 10–9.
American Football Conference
|1||Buffalo, Miami (tie)||1–0–0||Cleveland, Pittsburgh (tie)||1–0–0||Denver||1–0–0||2 teams||1–0–0|
|2||NY Jets||1–1–0||Pittsburgh||2–0–0||4 teams||1–1–0||7 teams||1–1–0|
|3||Buffalo||2–1–0||Pittsburgh||3–0–0||Kansas City||2–1–0||3 teams||2–1–0|
|4||Buffalo, Miami (tie)||3–1–0||Pittsburgh||4–0–0||Kansas City||3–1–0||Buffalo, Miami (tie)||3–1–0|
|5||Buffalo, Miami (tie)||4–1���0||Pittsburgh||4–1–0||Kansas City||3–1–1||Buffalo, Miami (tie)||4–1–0|
- N.Y. Jets finished ahead of Baltimore in the AFC East based on head-to-head sweep (2–0).
- Cincinnati finished ahead of Pittsburgh in the AFC Central based on better conference record (8–3 to Steelers' 7–4).
- Kansas City finished ahead of Denver in the AFC West based on better division record (4–2 to Broncos' 3–2–1).
- Dallas finished ahead of Washington in the NFC East based on better point differential in head-to-head games (13 points).
- San Francisco finished ahead of New Orleans in the NFC West based on better division record (2–4 to Saints' 1–5).
- Note: Prior to the 1975 season, the home teams in the playoffs were decided based on a yearly rotation. Had the 1973 playoffs been seeded, the AFC divisional matchups would have been #3 Oakland at #2 Cincinnati and #4 wild card Pittsburgh at #1 Miami; the NFC matchups would not have changed, although #3 Dallas would have had to travel to #2 Los Angeles, and #1 Minnesota would have had home field for the NFC championship game.
|Divisional Playoffs||Conf. Championship Games||Super Bowl VIII|
|December 22 – Metropolitan Stadium|
|December 30 – Texas Stadium|
|December 23 – Texas Stadium|
|January 13 – Rice Stadium|
|December 22 – Oakland Coliseum|
|December 30 – Miami Orange Bowl|
|December 23 – Miami Orange Bowl|
|Most Valuable Player||O.J. Simpson, Running Back, Buffalo|
|Coach of the Year||Chuck Knox, Los Angeles|
|Offensive Player of the Year||O.J. Simpson, Running Back, Buffalo|
|Defensive Player of the Year||Dick Anderson, Safety, Miami|
|Offensive Rookie of the Year||Chuck Foreman, Running Back, Minnesota|
|Defensive Rookie of the Year||Wally Chambers, Defensive Tackle, Chicago|
|Man of the Year||Len Dawson, Quarterback, Kansas City|
|Comeback Player of the Year||Roman Gabriel, Quarterback, Eagles|
|Super Bowl Most Valuable Player||Larry Csonka, Running Back, Miami|
- Baltimore Colts: Howard Schnellenberger was hired as head coach. Don McCafferty was fired after going 1-4 to start the 1972 season. John Sandusky replaced McCafferty, getting the Colts to finish 1972 with a 5–9 record.
- Detroit Lions: Joe Schmidt resigned. Don McCafferty was named as Schmidt's replacement.
- Los Angeles Rams: Tommy Prothro was fired and replaced by Chuck Knox.
- New England Patriots: Chuck Fairbanks joined the team as both head coach and general manager. John Mazur resigned after going 2-7 to start the 1972 season, and Phil Bengtson then served as interim.
- New Orleans Saints: J. D. Roberts was fired midway through the 1973 preseason. John North served as head coach for the rest of the preseason and the 1973 regular season onward.
- Philadelphia Eagles: Ed Khayat was replaced by Mike McCormack.
- St. Louis Cardinals: Bob Hollway was fired and replaced by Don Coryell.
- Houston Oilers: Bill Peterson was fired after the Oilers lost their first five games. Sid Gillman finished out the rest of the season.
- San Diego Chargers: Harland Svare left the team after going 1–6–1. Ron Waller served for the last six games.
From October 7, the New York Giants moved from Yankee Stadium to the Yale Bowl in New Haven, Connecticut, where they would play the rest of 1973 and all of 1974. The Giants were forced out of Yankee Stadium after it closed to be renovated to a baseball-only venue. Also, a new Giants Stadium in East Rutherford, New Jersey was already under construction by 1973, but it would not open until 1976.
- The Buffalo Bills added blue pants to be worn with their white jerseys.
- The Chicago Bears changed their "C" helmet logo from white to orange with white trim
- The Los Angeles Rams introduced new uniforms, reverting their white-and-blue helmets back to the gold-and-blue helmets last used in 1963. The new design included gold pants, blue jerseys with white numbers and white jerseys with blue numbers. Both jerseys included curling rams horns on the sleeves: yellow horns on the blue jerseys and blue horns against yellow sleeves on the white jerseys.
- The Miami Dolphins added stripes to their aqua jerseys, while standardizing their white jerseys to include stripes. During their undefeated season, most Dolphins wore white jerseys with stripes, but some did not, including Bob Griese and Larry Csonka. Also, the Dolphins added orange-topped socks with aqua and white stripes.
- The New England Patriots added blue outlines to the numbers of both their red and white jerseys. Stripes were also added to the sleeve ends: blue and white for the red jerseys, and blue and red for the white jerseys.
- Pro-Football-Reference.com blog: Rubin, Rozelle, the Redskins, and Super Bowl Blackouts
- "Last Undefeated NFL Teams in Each Season". Archived from the original on January 17, 2013. Retrieved December 26, 2012.