Keane allegedly pre-planned a foul on Manchester City star Haaland in the Manchester derby of May 2001.
At the time the media lambasted Keane for the horror-tackle, for which he had received an immediate red card.
Instead of walking away from the incident Keane then wrote an account of it in his controversial autobiography.
Former Republic of Ireland international Roy Keane was found guilty of both charges and had a five match ban and a record £150,000 fine slapped on him.
Speaking to BBC Radio Berkshire the Royals boss said: "In football we don't want players to target other players.
"Roy's tackle on Haaland looked much more horrific on TV. But lets not forget there was another ugly incident a few years back between the two when Keane snapped his cruciate ligaments and Haaland was snarling over him.
"I think we should bury it in the past and move on. We can't forget what happened, hopefully players can learn from what happened."
Despite the ugliness of the incident Roy Keane is expected to lodge an appeal against his punishment which will see him miss some crucial Premiership games.