Lee Kang-in (; born 19 February 2001) is a South Korean professional footballer who plays as an attacking midfielder and winger for Ligue 1 club Paris Saint-Germain and the South Korea national team.
A product of Valencia's youth academy, Lee made his professional debut for the club at the age of 17 in 2018, becoming the youngest South Korean footballer to debut professionally in Europe. In his debut season, he won the Copa del Rey, before making his UEFA Champions League debut in his second professional season. Lee joined Mallorca in 2021, where he established himself as one of Europe's top dribblers, before leaving Spain for French club Paris Saint-Germain in 2023.
In 2019, Lee won the Asian Young Footballer of the Year, the same year that he won the 2019 FIFA U-20 World Cup's Golden Ball award. Lee's team finished runner-up during the event. He later made his senior debut for South Korea in September 2019. In 2022, Lee was selected in his nation's squad for the 2022 FIFA World Cup.
Club career
Valencia
Lee joined Valencia's academy in July 2011. On 15 December 2017, he was called up to Valencia B (Mestalla). He had his debut on 21 December 2017, in a match with Deportivo Aragón, being substituted in the 82nd minute.
2018–19 season
Lee made his first team debut on 30 October 2018, starting and playing 83 minutes in a 2–1 win over Ebro in the Copa del Rey, becoming the youngest South Korean footballer to debut professionally in Europe.
Lee made his La Liga debut on 12 January 2019, substituting in for Denis Cheryshev in the 86th minute in a 1–1 draw with Real Valladolid during 2018–19 season. At 17 years, 10 months, and 24 days, Lee became the second youngest player in the 18–19 La Liga after Ander Barrenetxea from Real Sociedad who debuted at the age of 16 years, 11 months, and 24 days. He also became the youngest ever non-Spanish and the first Asian league debutant for Valencia, as well as the fifth Korean to play in La Liga.
On 30 January 2019, Lee officially joined the Valencia first-team, receiving jersey number 16.
2019–20 season
On 17 September 2019, Lee made his UEFA Champions League debut as a late substitute for Rodrigo in a 1–0 win against Chelsea, becoming the youngest ever Korean to debut in the competition at the age of 18 years and 6 months, a record previously held by Jeong Woo-yeong. He also became the 5th youngest ever to debut for Los Ches in the same competition. On 25 September 2019, he scored his first La Liga goal in a 3–3 draw against Getafe, to become the youngest non-Spanish to score for Valencia, aged 18 years and 219 days old, breaking the previous record of Mohamed Sissoko who scored in the 2003–04 UEFA Cup; and the third youngest ever, only behind Juan Mena and Fernando Gómez. His record as the youngest non-Spanish goalscorer for Valencia was broken the following season by American teammate Yunus Musah.
2020–21 season
On 13 September 2020, Lee became the youngest player, aged 19 years and 207 days, to assist two goals in a La Liga match in the 21st century, in a 4–2 win over Levante, breaking the previous record of Juan Mata in 2008, aged 20 years and 150 days. Despite rejecting several renewal offers from the club throughout the year, he featured regularly under Javi Gracia as the Che ended the campaign on a mid-table position.
After being on the transfer list during the entire pre-season, Lee terminated his contract with Valencia on 29 August 2021.
Mallorca
On 30 August 2021, fellow La Liga club Mallorca confirmed the free transfer of Lee, signing on a four-year contract.
During the 2022–23 season, Lee became one of the best dribblers in the Big Five European leagues by making the highest success rate of dribbles and the sixth highest number of successful dribbles.
Paris Saint-Germain
On 8 July 2023, Ligue 1 club Paris Saint-Germain announced the signing of Lee on a 5-year contract running through 2028, becoming the first ever South Korean to play for the club. A transfer fee of €22 million euros was paid out to Mallorca after Lee passed his medical at the start of June. He made his debut in a 0–0 draw against Lorient at the Parc des Princes on 12 August. On 25 October, Lee scored his first PSG goal, his first ever in the Champions League, in a 3–0 victory over AC Milan.