Footage of Liverpool striker Mohamed Salah being abused by supporters during his side’s Premier League draw at West Ham on Monday appears to be the latest in a worrying trend of discriminatory activity.
Here Press Association picks out five such moments from this season, which have convinced leading anti-racism campaigners to call for stadiums to be shut to combat the menace.
Tottenham fan banned
A fan threw a banana skin at Arsenal’s Pierre-Emerick Aubameyang (John Walton/PA)
Trouble at Millwall
Millwall are set to shut sections of The Den (Victoria Jones/PA)
Chelsea sanctions?
Stamford Bridge could be shut if UEFA allegations are proven (John Walton/PA)
Pellegrini calls for ban
Mohamed Salah suffered abuse at West Ham (Peter Byrne/PA)
Bong targeted
Brighton boss Chris Hughton criticised the targeting of Gaetan Bong (Victoria Jones/PA)