Best known as Celtic's club doctor during the glory years fo the late 60s and early 70s John Fitzsimons first came to Parkhead as an outside-left in August 1934.

He signed for the Hoops from St Roch's and made his competitive senior debut in a 1-1 league draw at Kilmarnock on October 5th 1935. He was however unable to establish himself as a first team regular and left in 1938 before going on to enjoy a succesful spells at Alloa and Falkirk.