Roy Keane's argument with an Ipswich Town fan emerged from his time as manager of the club as new details have come to light.
The Sky Sports expert was caught on camera confronting a follower on Portman Road on Sunday.
After the Tractor Boys' 1-1 draw with manchester united, Keane He left the broadcast table to approach the booth.
He could then be seen going back and forth with a local fan and is understood to have responded to the abuse by inviting the fan to continue their argument in the car park.
He daily mail They are now reporting that the altercation stems from Keane's tenure as Ipswich boss between 2009 and 2011.
A witness claims that the fan was angry with the Irishman for refusing to give his children an autograph and for being unpleasant when he approached him.
The witness told the Daily Mail: “The whole argument stemmed from a problem with their children.
“The fan's problem was getting autographs at the time he was manager here. The guy basically said Roy Keane ruled by fear.
“You could see him pointing at the parking lot because that's where the autographs were done, and that's where he had the problem with Roy all those years ago. So it makes sense that they were pointing there.”
Regarding Keane's comment about parking, the witness added: “What Roy said could have been misinterpreted.
“He could have wanted to talk in the parking lot, since that's where everything happened. It's hard to say. But yes, he could have wanted to say 'I'll talk to you in the parking lot,' but he gave the impression that he was inviting him to go out (to fight) )”.
The former midfielder replaced Jim Magilton as manager at Portman Road in April 2009, following his tenure at SunderlandEdit.
He won 29 of his 81 games during 21 months on the bench.
Keane's only full season in charge of the club saw Ipswich finish 15th in the Championship in 2010.
However, he left the position in January of the following year with his team in 18th place and just five points above the relegation zone.
This role remains Keane's last as a manager, although he has since been an assistant for the Republic of Ireland, Aston Villa and Nottingham Forest.