Although it initially looked as though Diego Costa had left training at the Camp Nou as a precaution, alarm bells rang following Diego Simeone's statements on Spanish television: "The doctors will assess his fitness, but I can't see him playing."

The striker pulled out of Atlético de Madrid's training session at the Camp Nou after just ten minutes. Costa participated in the first part of the warm-up and headed back to the changing rooms as a precaution as soon as his teammates started to do ball-work.

The forward walked to the changing facilities along with a physiotherapist. It is not known if this was past the 15-minute mark, as UEFA allows sessions to be recorded up to this point, but he then returned to the session.

Costa had to be substituted in the final minutes of the game against Bilbao due to a groin injury. Further tests showed that the injury was not serious.