Roy Keane accepts he overstepped the mark towards the end of his Manchester United career.
"No doubt over the years I have crossed that white line and it has probable cost me lots," Keane said in a press conference.
"The World Cup in 2002, my United career.
"But it has also been a big plus to me. I do care about the game, who I am playing for and playing with.
"Over the forthcoming days, weeks, months and, hopefully, years at
"Sometimes it comes with experience as you get older and more wise.
"I've made mistakes, but I'm just glad I've got this opportunity and hopefully I'll make the most of it.
"I wouldn't be sitting here if I thought I couldn't do it."
He also admitted calling
He added: "I spoke to him briefly over the last few days, but you've got to be your own man.
"I always enjoyed the way he looked after players, in terms of backing them and defending them.
"Again, maybe I did cross that line towards the end and I was rightly punished for it you could say. Again you move on.
"I was very, very fortunate to play under him and I'm sure I can pick up the phone any time and he'll lend me a few players if I need any!"