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Vengeance has a name, and thy name is Keano. The former Manchester United captain is not a man to upset.
But that is exactly what Leeds defender Alfe Inge Haaland did in 1997 when he was fouled by Keane. With the Irishman writhing in agony, Haaland stood over him and told him to stop faking it. It turned out that Keane had ruptured ligaments in his knee.
Fast forward four years to April 2001 and Keane met Haaland again, this time the Norwegian was wearing the colours of Manchester City.
With four minutes to go, Keane unleashed what was less of a reckless tackle and more outright warfare on Haaland's knee, a stomach-turning incident which gets no easier upon repeat viewing.
Keane marched off the pitch without even waiting for the red card. His work was done.
He would later write in his autobiography: "I'd waited long enough. I f****** hit him hard. The ball was there (I think). Take that you c***. And don't ever stand over me sneering about fake injuries. Even in the dressing room afterwards, I had no remorse. My attitude was, f*** him. What goes around, comes around. He got his just rewards. He f**** me over and my attitude is an eye for an eye."
The reason this sending-off makes the list is that, given his apparent mea culpa, it is ridiculous that Keane did not end up in prison. Haaland never played another full match, and had to retire in 2003.