Chelsea's complaint against Mark Clattenburg is not the first time the referee has been involved in controversy

Mark Clattenburg, who has been accused of using "inappropriate language" in a formal complaint by Chelsea to the Premier League, is no stranger to controversy. Clattenburg is said to have made the comments to two Chelsea players during the 3-2 defeat to Manchester United

Jan 2005 Pedro Mendes 'goal'

Clattenburg fails, along with his assistants, to spot the Tottenham midfielder Mendes's shot has been fumbled over the line by the Manchester United goalkeeper Roy Carroll in a match at Old Trafford and a goal is not given

Oct 2007 Tony Hibbert sent off

The Durham-born referee sends off the Everton full-back in a Merseyside derby. After appearing to be about to show Hibbert a yellow card, Clattenburg seems to change his mind and pulls out a red after a brief exchange with Steven Gerrard. He later does not send off Dirk Kuyt for a two-footed lunge at Phil Neville. He does not referee another Everton match until 2012 and has yet to reappear at Goodison Park

Aug 2008 Sacked over business dealings

He is suspended pending a probe into his business affairs following allegations he owes £60,000 as a result of a failed venture. He is then withdrawn from the FA Community Shield match between Manchester United and Portsmouth and later sacked by the Professional Game Match Officials Board. In February 2009 he is reinstated as a Select Group Referee on appeal but suspended for eight months from 6 August, 2008, – the date of his original ban – for "issues relating to his private business affairs"

Dec 2009 Craig Bellamy accusation

It is alleged, in a match between Bolton and Manchester City, that Clattenburg asks the City bench: "How do you work with Craig Bellamy all week?" He later sends off Bellamy for a second yellow

Oct 2010 Nani goal stands

Clattenburg correctly, if controversially, allows a goal to stand between Manchester United and Tottenham when the alert Nani seizes his chance to tap in to the empty net after the Spurs goalkeeper Heurelho Gomes puts down the ball, believing his side had a free-kick. Clattenburg had not blown his whistle