According to ESPN, Martínez, 34, collided with Everton's Jarrad Branthwaite in the 67th minute when rushing from his goal to attempt to punch an Everton free kick out of his penalty area. The Argentine international received extended treatment from the Chelsea physios and paramedics before being stretchered from the field of play while receiving oxygen. He was replaced by 21-year-old substitute goalkeeper Mike Penders in the 75th minute.

Chelsea coach Xabi Alonso confirmed that Martínez was conscious when leaving the stadium and has been taken to hospital for "precautionary tests". The Blues went on to win the match 2-0, thanks to two goals from Pedro Neto.