7. Emre
The Turkish international has had a long list of accusations of racist abuse levelled against him stretching back to 2005 when he was involved in a brawl in the tunnel against Switzerland. Already earmarked as a live wire he set his terrible work into motion after being accused of using racist abuse against black members of the Everton squad, which he quickly followed up by abusing Bolton’s El-Hadji Diouf. His foul mouth caught up with him earlier this year, after he was sentenced with a four-month suspended prison sentence for racially abusing Didier Zokora during a Turkish Super Lig game back in 2012.