UEFA Champions League for the sixth time since he came to reign in 2011, while before his arrival Atlético had only done so 7 times in 60 years. On 11 March 2020, Atletico Madrid eliminated the reigning European champions Liverpool with a 3–2 triumph after extra-time at Anfield, winning 4–2 on aggregate, after Saul secured a 1–0 first-leg win in the reverse via a 5th-minute strike. On 27 June 2020, Simeone won his 195th game in the top-flight of Spanish football as Atleti beat Deportivo Alavés 2–1 on Saturday. With the triumph, the Argentine has overtaken the club legend, Luis Aragonés (194), as the manager with the most La Liga wins in the club’s history. On 7 July 2020, Simeone overtook John Toshack as the third coach with the most games managed at a single club in the history of the top-flight of Spanish football during Atleti's match against Celta Vigo, his 323rd game in La Liga. Only Miguel Muñoz (Real Madrid, 424) and, the club legend, Luis Aragonés (407) remain ahead of him. For the 2020–21 season, Atlético parted ways with longtime-serving forward Diego Costa and acquired Luis Suárez after his departure from Barcelona. The team brought back Yannick Carrasco from Dalian Professional and also acquired Geoffrey Kondogbia from Valencia, Lucas Torreira on loan from Arsenal and Moussa Dembelé on loan from Lyon, while Thomas Partey left for Arsenal and Álvaro Morata was loaned to Juventus. On 17 October 2020, Simeone reached his 200th win in the league in a 2–0 away win against Celta Vigo. On 30 December 2020, he reached his 500th match in charge of Atletico Madrid in a 1–0 win over Getafe. On 10 March 2021, Simeone overtook Luis Aragonés for the most wins ever as manager of the club in a 2–1 home win against Athletic Bilbao, his 309th win overall. After a 4–0 away defeat to Bayern Munich and many injuries to key players in November 2020, Simeone modified the formation of his squad by introducing a three-man defence for the first time in his tenure coaching Atlético. In this formation, Carrasco played as a wing-back, with left centre-back Mario Hermoso being instructed to also cover the left-back position when Carrasco moved forward, which made the formation tactically-flexible between a three-man and four-man defence. After the formational change, Atlético were solidified defensively and began a streak of victories, including a 1–0 home victory