'Roy Keane knocked me out', reveals former Man Utd defender Gabriel Heinze

Former Old Trafford favourite Gabriel Heinze has lifted the lid on an altercation he had with ex-Manchester United captain Roy Keane.

Keane is renown for his short fuse and his willingness to speak his mind, and Heinze has revealed how he was on the wrong end of one of the Irishman's rants.

The duo had returned to the dressing room after United suffered Premier League defeat to Middlesbrough in 2004, with Keane telling the Argentine to 'f*** ***' only for Heinze to answer back.

"We lost a game and I went in the dressing room first and Roy Keane was second. I liked to go first after the game; I didn’t want to speak to anyone as we lost," Heinze said in an interview with Argentine TV show Pura Quimica.

"I didn’t understand English, just the bad words. I heard my name and “f*** off” by Roy Keane, the best player.

"I knew that was bad so I stood up to him, this idol of Manchester, this great guy who everyone loved, and replied: “F*** off, you”. I don’t remember what happened next."

During the interview he was asked if he didn't remember what happened next as he was knocked out, to which he answered: "Yes. Yes."

Keane referred to Heinze as a "good guy" and "nasty f*****" in his first autobiography. Due to a lack of first-team opportunities at Old Trafford, Heinze wanted to leave United for Liverpool in 2007 but the club rejected such a move.

Heinze was eventually sold to Real Madrid that summer.