|Full name||Li Yuanyi|
|Date of birth||28 August 1993|
|Place of birth||Zhongjiang, Sichuan, China|
|Height||1.80 m (5 ft 11 in)|
|2004–2006||Mingyu Football School|
|2010–2011||→ Arsenal (loan)|
|2011–2012||→ Real SC (loan)|
|2014–2015||→ Leixões (loan)||29||(2)|
|2016||→ Tianjin Teda (loan)||8||(1)|
* Senior club appearances and goals counted for the domestic league only and correct as of 26 September 2019|
‡ National team caps and goals correct as of 26 September 2019
Li Yuanyi started his football career when he received organized football training at Mingyu Football School, later joining Tianjin Teda's youth academy in 2007. He soon gained a loan spell to Premier League side Arsenal's academy for further training under a cooperation project between Nike and the Football Association in 2010. Afterwards, Li went to Portugal as a part of the Chinese Football Association's 500.com Stars Project in 2011. He arrived in Portugal on 16 December 2011 and played for Real SC's youth academy alongside Ruan Yang.
In July 2012, Li transferred to Segunda Divisão side Casa Pia. He made his debut on 28 October 2012 for the club in a 2-1 loss against Oriental Lisboa, coming on as a substitute for André Oliveira in the 34th minute; however, he was sent off after receiving two successive yellow cards in the 56th and 58th minute in his debut match. He gradually became a starter within the team and scored his first goal for the club on 13 January 2013 in a 1-1 draw against A.D. Carregado. He made 15 league appearances and scored four goals in the 2012-13 season.
On 23 August 2013, Li transferred to another Segunda Divisão club Boavista on a free transfer. However, his former club Tianjin claimed that Li was still under the contract with Tianjin and refused to acknowledge the transfer, but the dispute was quickly resolved. He made his debut for the club on 15 September 2013 in a 1-0 win against S.C. Coimbrões, coming on as a substitute for João Beirão in the 82nd minute. He scored his first goal for the club on 6 October 2013 in a 2-0 win against F.C. Perafita.
On 7 August 2014, after Boavista returned to the Primeira Liga, Li was loaned out to Segunda Liga side Leixões. He made his debut for the club on 13 September 2014 in a 2-1 win against C.D. Aves, coming on as a substitute for Leandro Augusto in the 70th minute. He extended his loan deal with Leixões for one season on 6 July 2015.
On 16 July 2015, Li transferred to Chinese Super League side Guangzhou Evergrande; however, he remained with Leixões to fulfill his loan deal before joining Guangzhou in December 2015. He made his debut for the club on 19 April 2016 in a 2-0 win against Pohang Steelers in the 2015 AFC Champions League, coming on as a substitute for Ricardo Goulart in the 53rd minute. On 15 July 2016, Li was loaned to fellow top tier side Tianjin Teda until 31 December 2016. He made his debut and scored his first goal for the club on 23 July 2016 in a 3-1 loss to Hangzhou Greentown. In February 2017, Li permanently transferred to Tianjin Teda.
- As of 26 September 2019 
|Club performance||League||Cup||League Cup||Continental||Others||Total|
|Portugal||League||Taça de Portugal||Taça da Liga||Europe||Others||Total|
|2012-13||Casa Pia||Segunda Divisão||15||4||0||0||-||-||-||15||4|
|China PR||League||FA Cup||CSL Cup||Asia||Others1||Total|
|2016||Guangzhou Evergrande||Chinese Super League||2||0||0||0||-||2||0||0||0||4||0|
1Other tournaments include Chinese FA Super Cup.
- 泰达小将葡萄牙留洋 新年无鞭炮无春晚无家人陪 at 163.com 2012-01-24 Retrieved 2014-09-25 (in Chinese)
- 中国天才球星飞进阿森纳 有望加盟引足协高度重视 at sina.com 2010-11-22 Retrieved 2014-09-25 (in Chinese)
- 关于公布中国青少年球员赴葡萄牙培训名单的通知 at Chinese Football Association 2011-08-30 Retrieved 2014-09-25 (in Chinese)
- Casa Pia 1 - 2 Oriental Lisboa at soccerway.com 2012-10-28 Retrieved 2014-09-25
- Casa Pia 1 - 1 Carregado at soccerway.com 2013-01-13 Retrieved 2014-09-25
- 前葡超冠军宣布签泰达新星 U22国足主力曾单场3球 at sina.com 2013-08-23 Retrieved 2014-09-25 (in Chinese)
- 天津泰达称与李源一有合同 转会存争议或上诉FIFA at sina.com 2013-08-24 Retrieved 2014-09-25 (in Chinese)
- SC Coimbrões 0–1 Boavista at zerozero.pt 2013-09-15 Retrieved 2014-09-25
- Perafita 0–2 Boavista at zerozero.pt 2013-10-06 Retrieved 2014-09-25
- Boavista empata com Cesarense em jogo-treino Archived 2014-09-25 at Archive.today at espbr.com 2014-08-07 Retrieved 2014-09-25 (in Portuguese)
- Leixões 2 - 1 C.D. Aves at soccerway.com 2014-09-13 Retrieved 2014-09-25
- Yuanyi Li renova e mais três contratações at Leixões S.C. 2015-07-06 Retrieved 2015-07-16 (in Portuguese)
- 徐新、李源一正式加盟广州恒大淘宝足球俱乐部 at Guangzhou Evergrande Taobao F.C. 2015-12-25 Retrieved 2016-04-26 (in Chinese)
- 未来可期!李源一恒大生涯首秀险破门 at sohu 2016-04-19 Retrieved 2016-04-26 (in Chinese)
- 关于球员马里克•埃沃纳、李源一加盟的公告 at Tianjin Teda F.C. 2016-07-15. Retrieved 2016-07-15 (in Chinese)
- 李源一世界波斩中超首球 回泰达想这刻他等太久 at Sina 2016-07-23. Retrieved 2016-07-26 (in Chinese)
- 泰达买断恒大中场李源一 支付约2000万元签4年 at sports.sohu.com 2017-02-17 Retrieved 2017-02-17 (in Chinese)
- "中超升班马官宣李源一加盟 泰达中场转投深圳". sports.sina.com.cn. 2019-02-27. Retrieved 2019-02-27.
- 李源一. sodasoccer (in Chinese).
- Li Yuanyi at Soccerway