Referee Mark Clattenburg, the subject of a complaint from Southampton that he verbally abused England midfielder Adam Lallana, is no stranger to controversy. Here are six other incidents from his career:
January 2005: Clattenburg fails, along with his assistants, to spot Tottenham midfielder Pedro Mendes' shot has been fumbled clearly over the line by Manchester United goalkeeper Roy Carroll in a match at Old Trafford and the goal is not given.
October 2007: Sends off Everton defender Tony Hibbert in a Merseyside derby. After initially appearing to be about to show him a yellow card, Clattenburg seems to change his mind and pulls out a red after a brief exchange with Steven Gerrard. He later fails to send off Dirk Kuyt for a two-footed lunge at Phil Neville. Clattenburg does not referee another Everton match until 2012.
August 2008: Suspended pending a probe into his business affairs following allegations he owed �60,000 as a result of a failed venture. He is later sacked by the Professional Game Match Officials board, but is reinstated in February 2009 on appeal, but suspended for eight months.
December 2009: Allegedly asks the Manchester City bench: "How do you work with Craig Bellamy all week?" and sends Bellamy off for two yellow cards against Bolton.
October 2010: Correctly, if controversially, allows a goal to stand between Manchester United and Tottenham when Nani taps the ball in after Spurs goalkeeper Heurelho Gomes put the ball down, believing his side have a free-kick.
October 2012: Cleared of an accusation by Chelsea midfielder John Obi Mikel of using "inappropriate language" during the heated 3-2 defeat to Manchester United, with replays showing United's winner is offside. After investigations from both the Football Association and the police, Clattenburg is exonerated but Mikel is fined �60,000 ($100,000, 72,500 euros)and banned for three matches for threatening Clattenburg after the game.