On 1 March 2020, he scored a bicycle kick in a 3–0 win against Pumas in Liga MX Clausura 2020. This goal has been nominated for the FIFA Puskás Award 2020. On 22 December 2020, Gignac scored the winning goal in a 2–1 win over Los Angeles FC in the 2020 CONCACAF Champions League Final. On 4 February 2021, Gignac scored a brace in a 2–1 win against Ulsan Hyundai in the second round of the 2020 FIFA Club World Cup. On 7 February, he scored a penalty in a 1–0 win over Palmeiras in the semi-finals, to help his team to become the first Mexican club to reach the final of the competition. He later extended his contract until 2024.