Fiorentina captain and defender Cristiano Biraghi suffered a head injury after West Ham fans started throwing objects onto the pitch.
The incident took place in the final meeting of the Conference League on June 7 in Prague. According to the replay, the defender was hit in the head by a plastic cup, which caused the injury.
The player was treated and then continued to play with a bandage on his head. There are no goals after the first half.