Fiorentina captain Cristiano Biraghi was left bleeding after being struck by an object thrown by West Ham supporters during the Europa Conference League final.
The defender was hit by multiple missiles after walking over to take a corner in front of the Hammers' contingent and required treatment from medical staff.
One object, believed to have been a vape, struck Biraghi directly on his scalp and caused a small gash, leading blood to pour down the back of his head and his neck.
The match was halted to allow the officials to hold consultations with both captains, and a number of West Ham players attempted to calm down the unruly supporters.