Background
Key was born in the Dennistoun district of Glasgow, and played at Junior level for Parkhead before stepping up to Heart of Midlothian in 1899.
Key was born in the Dennistoun district of Glasgow, and played at Junior level for Parkhead before stepping up to Heart of Midlothian in 1899.
After a disagreement with Hearts over financial matters, Key was signed by Chelsea in 1905 for their first season in English football. The Chelsea manager Jacky Robertson had been an international teammate of Key"s three years earlier. Key left Chelsea in 1909.