Harold Sly was an English professional association football player of the 1920s and 1930s.

Born in Appley Bridge

Appley Bridge

Appley Bridge is a village in West Lancashire, England. It is located off Junction 27 of the M6 motorway and is nestled in the Douglas valley alongside the Leeds and Liverpool Canal.-History:...

, he played football for the Rover Company's team before joining Birmingham F.C.

Birmingham City F.C.

Birmingham City Football Club is a professional association football club based in the city of Birmingham, England. Formed in 1875 as Small Heath Alliance, they became Small Heath in 1888, then Birmingham in 1905, finally becoming Birmingham City in 1943.They were relegated at the end of the...

, however he never started a match for the club in The Football League

The Football League

The Football League, also known as the npower Football League for sponsorship reasons, is a league competition featuring professional association football clubs from England and Wales. Founded in 1888, it is the oldest such competition in world football...

, and dropped back into the amateur game with Tamworth Castle. In 1927 he joined Gillingham

Gillingham F.C.

Gillingham Football Club is an English professional football club based in the town of Gillingham, Kent. The only Kent-based club in the Football League, they play their home matches at the Priestfield Stadium...

 of the Football League Third Division South

Football League Third Division South

The Football League Third Division South was a level of English professional football which ran in parallel to Third Division North from 1921 to 1958....

, where he spent two seasons, but never secured a regular place in the club's first team. He then moved to Brighton & Hove Albion

Brighton & Hove Albion F.C.

Brighton & Hove Albion Football Club are an English association football club based in the coastal city of Brighton & Hove, East Sussex. They currently play in the Football League Championship, the second tier of the English football league system....

, before joining French club FC Sète

FC Sète

FC Sète 34 is a French football club based in Sète and founded in 1900. The club won the French league twice and the French cup also twice . In 1934 they became the first club to win the French league and cup double....

.