The referee has been confirmed for this weekend's All-Ireland Senior Football Championship clash between Mayo and Roscommon.
Barry Cassidy from Derry will take charge of the Group 2 encounter on Saturday evening at 5pm in Dr. Hyde Park.
Mayo won their opening game with ease against Cavan while Roscommon suffered a 12 point defeat at the hands of Dublin.
Saturday's game is live on Midwest Radio with thanks to O'Halloran & O'Brien Construction in the UK.