According to BBC
The 43-year-old has been assistant manager with the Republic of Ireland, working under Martin O’Neill, and accepted manager Paul Lambert’s offer to be the Aston Villa number two in the summer. But ultimately, he conceded that he can’t give his all in both roles, and is committing his future to his country as a result.
“Ultimately, my roles with Villa and Ireland and combining my commitment to these have become too much. It isn’t fair to either Villa or Ireland, so I’ve made this decision,” said Roy Keane.
Aston Villa manager Paul Lambert detailed the conversation the two had about Keane’s future with the club, and says he fully accepts his decision. The Scot also praised him for his work with the Midlands outfit in the six months he was on board.
Think you know your football? Share your knowledge, tips and comments to win cash prizes in OLBG’s tipster competition – £11,000 to be won monthly!