UEFA has punished three eastern European clubs for racist behavior by fans at Champions League and Europa League matches by ordering some parts of stadiums closed to spectators.
UEFA says Slovan Bratislava, Dynamo Moscow and Ruch Chorzow must close sections of their stadiums at home matches next week.
Slovan hosts BATE Borisov in a Champions league playoff, first-leg match on Wednesday.
UEFA has sanctioned 10 eastern European clubs for racist incidents this season, including Maribor, which hosts Celtic in the Champions League playoffs on Wednesday.
Slovakia champion Slovan was punished at a third qualifying round home match against Sheriff of Moldova.
In the Europa League, Dynamo was sanctioned after hosting Israel's Hapoel Kiryat Shmona, and Ruch Chorzow of Poland for incidents against Esbjerg of Denmark.