Treeton, Rotherham born left back Albert Cox joined Second Division Sheffield United from amateur side Woodhouse Mills United in April 1935, a year after joining the junior club, and quickly settled into the first team at Bramall Lane. He made his Football League debut against Blackpool at Bramall Lane on 20th February 1936, in a 1-0 win. In 1936, Sheffield United reached the FA Cup semi-final, where they met fellow Second Division side Fulham. Regular left-back, Charlie Wilkinson was injured and unavailable to play so the inexperiennced Cox took his place. Cox remained “cool in defence” as Fulham were defeated 2-1. Wilkinson recovered from his injury in time for the Final and manager, Teddy Davison, “opted for (Wilkinson’s) age and experience” over Cox. He played 27 League games in 1938-39 as United were promoted to the First Division as Second Division runners up.
Cox was often described as a ‘bundle of energy’ on the field of play. His partner at full back in the late 1930’s was Harry Hooper. Although the Second World War interrupted his career, Cox played on for several seasons after hostilities had ended, and became one of the most consistent left backs in the Football League. In total he made 292 appearances for The Blades scoring 5 goals. He was then transferred to Halifax Town in July 1952 close season, scoring once in 62 appearances for The Shaymen before retiring from football in 1954.