Fitzgerald joined the Brentford Centre of Excellence at age 12 and started his senior career in non-League football at Northwood before being signed by First Division side Watford in February 2003.

[2] He made his professional debut on 21 April 2003, coming on as a substitute for Michael Chopra in a home win over Derby County.

[5] He scored two further goals that season and featured as a substitute in the second leg of Brentford's play-off semi-final defeat to Sheffield Wednesday.

[10] In June 2010, he signed for Isthmian Premier League side Wealdstone and will be an important part of their quest to achieve promotion.

[11] Since leaving Chalfont St Peter in 2014, Fitzgerald has been without a club but in September 2015 stated his intention to carry on playing.