Roy Keane has quit his post as Aston Villa assistant manager to concentrate on his role as the No. 2 for Ireland.

Keane was also Paul Lambert's No. 2 at Villa.

“Ultimately, my roles with Villa and Ireland and combining my commitment to these have become too much,” Keane explained. “It isn’t fair to either Villa or Ireland, so I’ve made this decision. I’d like to thank Paul for giving me a great opportunity to come to a brilliant football club. I’ve really enjoyed my experiences at Villa and I wish the management team, the players, the supporters and the club nothing but the best going forward.”

Villa said that Lambert will look to fill the position “as soon as is practically possible.”