 Although he had some success with both Fitzroy and Brisbane, Molloy hit his straps upon reaching Collingwood.He immediately assumed the role of a club leader, and surprised many in finishing runner up to Paul Licuria in the 2001 Copeland Trophy.At the end of 2003, Molloy announced his retirement from the game at the age of 28, citing the desire to be able to walk properly on his troublesome ankles.