West Hoathly, Sussex born centre half George Coomber began his football career with Tottenham Thursday in 1911 and had been on the books at Tottenham Hotspur before the First World War without ever playing in their first team, playing for amateur side Tufnell Park before signing as an amateur for Brighton & Hove Albion, then of the Southern League in 1913. He appeared intermittently in 1913-14, turned professional at the end of the season, and soon established himself in the side before peacetime football was suspended in May 1915.
During the War, he served in the Army and made guest appearances for clubs including Tottenham Hotspur and Watford. On resumption he returned to Brighton & Hove Albion, and made his Football League debut in their inaugural League match at Southend United in August 1920. He became club captain and made 183 appearances for Brighton over their first five seasons, scoring twice, being ever present in 1923-24 having missed only three matches in the previous two seasons, His last game came in October 1925 having started the first dozen matches of the season, when he suffered a career ending injury, having scored 5 goals in 243 appearances for Brighton across his twelve years at The Goldstone Ground, and he was subsequently awarded a benefit match.