Goalkeeper of Chelsea: Thibaut Courtois's head injury, during the match against Arsenal on Sunday

Headway chief executive Peter McCabe said “Thibaut Courtois has been given the all clear after undergoing tests on a head injury at hospital. And it was hard to understand how a concussion was not suspected.”

Courtois was injured in the 10th minute at Stamford Bridge but, after being measured on the pitch by Chelsea medical staff said that Courtois bleeding from an ear as he was replaced by Petr Cech.

McCabe stated that “The new regulations introduced this season were designed to ensure no risks to players' health were carried."

Thibaut Courtois appeared to be concussed after a collision with Alexis Sanchez (leftside-Arsenal player), during the match between Chelsea and Arsenal.

Bleeding from one or both ears is one of the symptoms that necessitate an immediate visit to hospital.

A Chelsea spokeman says, "Thibaut Courtois went to the hospital during our game against Arsenal on Sunday for precautionary tests on a head injury.