He made 384 appearances for Stoke. He and a number of younger players played for Stoke during the War and was a regular in the side until the Football League resumed in 1946-1947 where his place was taken by George Antonio. Frank Mountford"s injury in January opened the door for the 22-year-old Sellars to take his chance and he filled in a right half easily, playing a vital role as Stoke fell short of winning their first ever League title.
In 1947-1948 Sellars had to fill in around Stoke"s injury ravaged team, playing at full-back, right-wing and even centre-forward before finding his place at left-half replacing Jock Kirton despite being right footed.
Manager Bob McGrory descried Sellars as "a managers dream" for his willingness to play in any position. Known also for his consistency, Sellars was ever present in 1948-1949 and missed only three games over the next two seasons.
That run was ended in 1951-1952 after he suffered from a slipped disc. Sellars recovered and was a regular under new manager Frank Taylor as Stoke were relegated in 1952-1953 and were then left frustrated in the attempts to regain their First Division spot.
He retired in May 1959 and went onto run his own business in Bristol and was in the process to selling up and moving to Spain when he died in June 1985.