Towards the latter end of his career, Roy Keane did everything he could to ensure that he performed to the best of his abilities on the pitch.
Much of that came down to the way he prepared in the buildup to games. That was not only in relation to the way he trained, but also his diet and the way he abstained from alcohol.
Of course, this wasn't always the case. Whereas Keane gave up drinking after his serious knee injury towards the end of the 90s, he had a more carefree approach during the early portion of his career.
He has previously spoken openly about the way he enjoyed the nightlife during his time in both Nottingham and Manchester, sometimes a bit too much.
Lee Sharpe remembers wild nights out with Roy Keane
Lee Sharpe was one of the players Roy Keane socialised with most often after his move to Manchester United, up until the Englishman left for Leeds United in 1996.
Speaking on the Under The Cosh podcast, Sharpe recalled how some of those nights out with the Cork native ended in a rather messy fashion.
Keaney was amazing, I love Keaney. I think I’m probably the only footballer that he’s ever knocked around with that he’s never had a fallout with.
He’s had arguments and tantrums with everybody I know but for some reason [not me]. I’m the type of player he would have hated if he was playing against me. He was the total opposite of me.
I looked after him when he first got to United. I took him out. He was aggressive and quite a nasty drunk at times.
I looked after him in certain situations and put him in cabs, sent him home and got him out of trouble. So I think he appreciated that.
We sat next to each other in the training ground, we went out loads. He was different class. What you see is what you get with him. No messing around.
Roy Keane still speaks fondly about Lee Sharpe's personality away from the pitch, something that isn't the case with too many other players.
He must have really enjoyed those nights out in Manchester.