Chelsea have been criticised for their treatment of goalkeeper Thibaut Courtois during Sunday's win over Arsenal.

The Belgian stayed on the pitch for 14 minutes after suffering a head injury before then being replaced and immediately going to hospital for checks.

The initial problem began when he collided with Alexis Sanchez as he came out to smother a ball.

British head injury charity Headway said it was "hard to understand how a concussion was not suspected".

Chelsea manager Jose Mourinho says he was happy to go along with the advice from his medical staff.

The 22-year-old has since been released from hospital and has been cleared to play again but it remains to be seen if he will feature for Belgium in their Euro 2016 qualifiers against Andorra and Bosnia.