Roy Keane has resigned as assistant manger for Aston Villa with immediate effect.

The 43 year, who has been balancing his Ireland role with being Paul Lambert's right hand man, has decided that there is too much work to sustain both jobs.

"Ultimately, my roles with Villa and Ireland, and combining my commitment to these, has become too much.

"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."

Club CEO Tom Fox thanked Keane for his service to the club, wishing him the best with Ireland:

"Our focus now will be on working with Paul to identify the right person to work alongside him and to help us continue on our journey to return the club to its rightful place in the Premier League."