Jefferson Farfan ruled out of Peru's final game due to 'traumatic brain injury'

The Lokomotiv player, 33, collided with a team-mate in training, was unconscious for "a couple of minutes," and remains in hospital following the incident.

Protocols surrounding concussion in sport means that Farfan will have to sit out the match against Australia on Tuesday. In any case, Peru cannot make the final 16.

"It was a scare but he is doing well. The most important thing is that he is recovering," said coach Ricardo Gareca in an interview with 'BBC Sport'.

"There are some protocols in terms of recovery of a player so that means it is mandatory for a player to stay in hospital for 72 hours until he is stabilised."

"He could be released from hospital but we understand the healthcare of the players is the priority."

According to the Peruvian Football Federation, Farfan's test results have been "favourable for the player."