Official twice breached protocol in his efforts to make pop concert on Saturday night
Official under investigation over comments made during match against Everton on Sunday
Chelsea's new manager hasn't given up on striker and hopes training drills will improve his goal rate
FA finds referee has no case to answer over Mikel smear – but where is Chelsea's apology?
The Blues can't win as police drop investigation into Clattenburg race allegations
Supporter caught on camera the day after Chelsea says ref called Mikel a 'monkey'
Fears that ref's accent confused Brazilian players who reported racial slur against Mikel
Latest allegations are 'too depressing for words' as football heads back to the gutter
Referee accused of 'inappropriate language', as he files report about post-match fracas
Premier League talking points: ref faces racism claim, Suarez takes another dive
After ugly game turns even uglier, Chelsea lodge formal complaint against Mark Clattenburg