Born in Rossendale, Molloy played as a wing half in the Football League for Bristol Rovers during the 1933–34 season, making six appearances.
[5][6] Molloy also made one guest appearance as a player for Watford during a wartime game against Aldershot on 2 January 1943.
[7] Molloy managed Turkish club side Galatasaray between 1947 and 1949.
[4][8] He later managed the Turkey national team in two spells,[4][9] before moving onto Fenerbahçe.
During this time, he had a benefit match against rivals Luton in 1968 and a testimonial against Wolves in 1973.