 On 13 September, in a Champions League group-stage match against Barcelona, Pato scored the fifth-fastest goal in the competition's history, 24 seconds after kick-off.Later that month, he suffered a thigh injury during a 1–1 draw with Udinese.Pato made his return as a sub against Fiorentina and hit the post in the 79th minute in a 0–0 draw.