The former Manchester United and Arsenal stars relive some of the most famous battles.
Some recognise Roy Keane and Patrick Vieira’s rivalry the as the last of the greatest ongoing player battles of the Premier League era, and the league has seen nothing of the sort since the pair retired.
On Tuesday night the pair met in the studio to reminisce about some of their run-ins and even managed to crack a few jokes along the way.
Warning! Roy Keane attempting to smile is not for the faint hearted!.