Manchester United take on Arsenal today and the fixture is one that always evoke memorable clashes of years gone by.
In some cases they literally were clashes, with the two teams engaged in a bitter rivalry during the 1990s and 2000s. Arguably the most iconic flashpoint of the era came in February 2005 when the respective skippers of each team, Roy Keane and Patrick Vieira, were involved in a pre-match tunnel spat.
Wayne Rooney was one of the players privy to the scene - and now he has revealed exactly why it happened and what Keane said to his opposite number.
