Roy Keane has quit his role as Aston Villa's assistant manager with immediate effect, the club have announced.
The 43-year-old had been splitting his time between Villa and his job as Martin O'Neill's number two with the Republic of Ireland.
But Keane has stepped down from the Barclays Premier League club ahead of their trip to Burnley on Saturday.
Keane said in a statement: "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.
"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."