Patrick O'Connell: The Irishman who captained Man Utd and managed Barcelona

He is not someone whose name immediately springs to mind when Irish football is mentioned but Dublin born Patrick O' Connell had an astonishing career as a player and manager.
He had modest success on the playing staff for Manchester United between 1914-1919 and later went on to become a hugely successful manager in Spain's La Liga, leading Real Betis to their only ever league title in 1935.