Patrick Vieira and Roy Keane enjoyed one of football's greatest rivalries during their careers - and it has continued over into retirement.
The combative ex-midfielders are no longer clashing in the centre of the pitch, but whenever they've appeared on TV together the duo have been quick to poke fun at each other.
They took part in the fantastic ITV documentary a few years back when they debated which of them was the better player, and it is no secret that the Frenchman thinks he was the more skillful footballer.
Vieira, now manager of New York FC, took part in an interview with Copa 90, and the subject of Keane came up. Vieira gave a cocky assessment of himself and Keane's rivalry, and it was tough to tell how much of the World Cup-winner's answer was tongue in cheek.
"There was Roy Keane, and there was myself," Vieira said, using his hands to indicate a big difference in quality.
"He always would see the back of my shirt. So that's why on his mind, he always had the number four on his mind. I always loved to play against this guy because I think we shared a bit of the same passion for the game.
"Every time I played against him, he was tough. He was a leader.
"He was one of the best before I arrived."
Watch the full interview below: