Roy Keane has said he is delighted to be the Republic of Ireland's assistant manager and had no hesitation in accepting Martin O'Neill's offer.
He was speaking at a news conference for the first time since taking training with O'Neill.
Keane, who has been manager at Sunderland and Ipswich, says he has no problem with being a number two.
He said he holds no grudges with FAI chief executive John Delaney and that he has left his differences with them behind him.
He said: "I’m quite happy to move on pretty quickly. It was very straight-forward. We wanted what was good for Irish football. The past is the past."
He also revealed that he hopes to improve under O'Neill's tenure.
He said: "Obviously we have come across each other a little bit with ITV. Certainly it's not a pal's act. Martin is a very serious manager.
"I'm hoping he's looking at me and thinking that I have the chance of being a decent coach manager and I can bring something. But working with Martin will hopefully be a good experience for me."
He also said he has no problems working with the FAI again and called the opportunity to be the Republic of Ireland's assistant manager under Martin O'Neill "too good to turn down".
The former Manchester United captain had a feud with the FAI's CEO, John Delaney, since walking out on the 2002 World Cup squad when he was a player.
However, he says their first meeting about his new role was fine.