An inside forward, Sperrin began his career as an amateur at Second Division club Tottenham Hotspur and also represented Middlesex Schools.
[3] He also played as a guest for Clapton Orient, Fulham, Millwall, Bradford Park Avenue, Brighton & Hove Albion and Chelsea during the war.
[2] Sperrin joined Second Division club Brentford in September 1949 and made his debut in a 1–1 draw with Sheffield Wednesday at Griffin Park on 1 October 1949.
[2] Sperrin dropped back into non-league football in 1956, linking up with fellow Brentford departee Reg Newton at Kent League First Division club Tunbridge Wells United.
[2] As assistant manager, he had the honour of leading the team out for the 1971 FA Trophy final at Wembley Stadium, as player-manager Jim Langley had included himself in the starting lineup.