Olimpia defender Victor Salazar will spend Wednesday night in the hospital after an inadvertent arm to the head in the Copa Libertadores quarter-final caused him to experience seizures.
In the 22nd minute, he was struck by Giorgian De Arrascaeta as they went for a ball in the air.
Salazar was taken away from Manuel Ferreira Stadium in an ambulance as a crowd of concerned team-mates and Flamengo opponents gathered around to wish him well.
What happened?
De Arrascaeta raised his arm as he attempted to control the ball, and as Salazar rushed in to challenge him, he caught the Argentine in the face.