 United paid £5,000 for Gibson, a record fee for both clubs at the time, but he failed to live up to expectations and it appeared he was past his prime.His inconsistency and lack of confidence led to criticism from the club's supporters during games, but despite this Gibson went on to make 118 appearances for the Blades, scoring 29 goals.A serious knee injury sustained in a game against Derby County in January 1932 was quickly followed by further knee problems and Gibson was forced to retire from playing at the age of 33.