Career
He played one game in the Football League for Wolverhampton Wanderers. Cocker began his career in the youth team of Wolverhampton Wanderers in 1956, playing in their 1958 FA Youth Cup triumph. He turned professional in Summer 1958 and eventually made his senior debut on 4 February 1961 in a 2–1 defeat at Blackburn Rovers.
This turned out to be his only appearance for Wolves" first team and he was released at the end of the season.
He joined local non-league side Wellington Town immediately after, before relocating to South Africa with the Arcadia Shepherds.