Scott William Inglis "Billy" Sinclair (born 21 March 1943) is a Scottish former professional footballer who played as an wing-half.
Sinclair started his career with Greenock Morton before moving to English side Chelsea in 1964.
[1] Due to an arrangement between Glentoran and American side Detroit Cougars, Sinclair played ten games in the 1967 United Soccer Association season.
[1] While at Sligo Rovers, Sinclair assumed the position of player-manager, before briefly managing Glenavon.
[6] His son has spoken out about the treatment of ex-footballers, and has called for better welfare support, as well as the disease to be treated as an industrial injury.