Answer
Joey Barton attacked three players on the final day of the 2011-2012 season. He first kicked out at Ousmane Dabo, who was then on loan to Manchester City from QPR, after he had come on as a substitute. He then punched Newcastle United's Fabricio Coloccini and headbutted Manchester City's Sergio Agüero. Barton was subsequently banned for 12 matches and fined £75,000 by the FA.