Former Manchester United captain Roy Keane says he was driven by a 'hatred' for Arsenal during the intense years of rivalry between the two clubs as both pursued the Premier League title.
The two giants of the English game were the only winners of the top-flight between 1996 and 2004, with Keane leading Manchester for the majority of that period.
Although having lost its gravity in more recent years given Arsenal's steady decline - something that has been arrested this season - it remains one of the great feuds in Premier League history, and Keane admits he was obsessed by beating the Gunners.
Speaking in a TV programme documenting his own fierce relationship with Gunners captain Patrick Vieira, the Old Trafford legend said: "I had a lot of hatred for Arsenal."
One particular incident between these two players is remembered as their most iconic of clashes, as Keane and Vieira had to be separated in the tunnel before an encounter at Highbury in 2005.
Vieira confronted Gary Neville as the teams lined-up, something Keane took exception to, and the Manchester United captain let it all out in front of the TV cameras.
"I heard you picking on Gary," Keane said to Vieira as they recalled the clash. "You were picking on the weak link."
Vieira responded: "I said to him that if he touched Robert I would come after him."
Keane had the last laugh, however, as Manchester United triumphed 4-2.