This time, it's Chelsea accusing the FA of racism, rather than the other way round:

http://www.telegraph.co.uk/sport/football/teams/chelsea/9639556/Chelsea-accuse-referee-Mark-Clattenburg-of-making-racial-remark-during-defeat-to-Manchester-United.html

However, the police have decided not to prosecute referee Clattenburg, unlike footballer John Terry, because of, er, lack of evidence. Naturally, the black lawyers' association doesn't accept this lame excuse for, you know, white supremacy and stuff:

http://www.guardian.co.uk/football/2012/nov/14/chelsea-fa-cosy-agreement-clattenburg