text: In the 2020 summer transfer window, Lille chose to sign young talents Sven Botman and Jonathan David as well as veteran Burak Yılmaz. At the end of the 2020–21 season first half, Lille had only lost two games and was well installed in the top league rankings, having defeated Derby du Nord rivals Lens in a 4–0 home win on 18 October 2020. The Mastiffs started the second part of the season with a six-game winning streak and lost only once until the end. On 3 April 2021, Lille won at Paris with a Jonathan David goal and took over sole possession of first place in the league. Three weeks later, Lille came back from two goals down to beat Lyon at Groupama Stadium as Burak Yılmaz scored twice including a 27-yard free kick in a breathtaking 3–2 away win. Lille then defeated local rivals once again, scoring three goals at Lens and prevailing in the season with an aggregate score of 7–0. On 23 May, Lille sealed the Ligue 1 title with a 2–1 victory at Angers after a dramatic Ligue 1 final round and won its fourth Ligue 1 title under the guidance of manager Christophe Galtier. At the end of the season, goalkeeper Mike Maignan finished the season with 21 clean sheets, one short of the league season all-time record. Competing also in the 2020–21 UEFA Europa League, they defeated AC Milan at San Siro, on 5 November 2020, in a big 3–0 away win with a hat-trick from Yusuf Yazıcı, but lost to Ajax in round of 32.
  New cycle and Fonseca's arrival (2021–present)