A 42-year-old man has been arrested on suspicion of assault after Roy Keane was reportedly headbutted at the Emirates Stadium yesterday.
Footage was posted on social media of his fellow Sky Sports pundit Micah Richards pinning a man against a wall in the moments after the alleged assault on Sunday.
Arsenal were playing Manchester United, with the home side winning the game 3-1.
British Police did not identify anyone involved in the incident, but issued a statement that said: "Police are investigating an incident at Emirates Stadium on Sunday, 3 September, during which a man was assaulted.
"On Monday, 4 September, a 42-year-old man was arrested on suspicion of assault (ABH). The man has been taken into police custody.
"Enquiries are ongoing."
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