Liverpool shot-stopper Alisson was forced off the pitch following a horror head injury during his international trip with Brazil against Colombia.
The Reds' star suffered a serious knock - and later taken off with a 'suspected concussion' - after he collided with former Premier League rival Davinson Sanchez.
The incident happened after the Brazilian jumped to punch the ball while Sanchez attempted to score a header - with both players ending up falling to the ground.
Brazil team's doctor Rodrigo Lasmar followed with an update after Alisson was visibly concussed and dizzy before receiving medical treatment.