Fiorentina was hit with a suspended partial stadium one-match ban Tuesday after fans directed racist and discriminatory chants at Juventus players Weston McKennie, Moise Kean and Dusan Vlahovic.
If there is another incident over the next year, the Tuscan club will be forced to play with one end of its stadium closed -- plus another penalty, Serie A said.
The incidents occurred during Juventus' 1-0 win at Fiorentina on Sunday.
United States international McKennie and Italy's Kean are both Black, while Vlahovic -- a former Fiorentina standout -- is Serbian.