On 1 May 2020, PSG were crowned Ligue 1 champions after the season had been called off amid the COVID-19 pandemic; at the time of the League's premature suspension, PSG were in first place, with a twelve–point lead over second–placed Marseille. Mbappé finished the 2019–20 season as joint-top scorer in Ligue 1 with 18 goals, along with Monaco's Wissam Ben Yedder. However, Mbappé was assigned the title of top scorer due to his superior goals per game ratio. On 24 July, in the 2020 Coupe de France Final against Saint-Étienne, Mbappé was forced off after sustaining an injury following a challenge from Loïc Perrin, who was sent off; PSG won the match 1–0, although Mbappé was ruled out of the 2020 Coupe de la Ligue Final, which PSG went on to win, completing a domestic treble. He returned to action in the Champions League quarter-final against Atalanta on 12 August, coming on a substitute, and assisting Choupo-Moting's match–winning goal in injury time. PSG eventually lost out in the Champions League final 1–0 to Bayern Munich on 23 August.