Angry Antwerp fans staged riots after their football team missed the league title in the second division.
A Trabzonspor fan attacked an assistant referee during Sunday's Turkish Super Lig match between Trabzonspor and Fenerbahce, forcing the game to be abandoned.
Trouble erupted at Saturday's Serbian Super Liga clash between Crvena Zvezda and Partizan as rival fans threw flares and seats at each other and riot police.
A fight broke out between rival fans during Friday’s Dublin derby between Bohemians and Shamrock Rovers at Dalymount Park.
Two Ruch Chorzów fans clashed with away fans.