Messi opened the 2015–16 season by scoring twice from free kicks in Barcelona's 5–4 victory (after extra time) over Sevilla in the UEFA Super Cup. On 16 September, he became the youngest player to make 100 appearances in the UEFA Champions League in a 1–1 away draw to Roma. After a knee injury, he returned to the pitch on 21 November, making a substitute appearance in Barcelona's 4–0 away win over rivals Real Madrid in "El Clásico". Messi capped off the year by winning the 2015 FIFA Club World Cup Final on 20 December, collecting his fifth club trophy of 2015 as Barcelona defeated River Plate 3–0 in Yokohama. On 30 December, Messi scored on his 500th appearance for Barcelona, in a 4–0 home win over Real Betis.