Rosenborg
Permanent / 2016 / 2019

Alexander Joseph Gersbach (born 8 May 1997) is an Australian professional footballer who plays as a left back for the Australia national team and Kalmar FF. He made his debut for Australia in 2016, having previously played numerous times for the nation's youth teams.
Early life Born in Auburn, Sydney to a father of German descent and a mother of Greek descent, Gersbach grew up in Sutherland, in Sydney's South East. For the majority of his school years he attended St Patrick's College, Sutherland, before leaving for the Australian Institute of Sport in Canberra where he also attended Canberra High School. Gersbach played his youth football for the Miranda Magpies and Sutherland Sharks where he played as a striker.
Club career Sydney FC On 20 July 2014, Sydney FC announced that they had signed Gersbach to a two-year deal. Alex was previously given the number 13 jersey, but later swapped with Christopher Naumoff for the number 16. Rated as one of Australia's most promising young footballers, he made his senior professional debut for the club at the age of 17 years and 3 months in the 2014 FFA Cup Round of 32 tie against Melbourne City FC at Morshead Park on 12 August 2014 which Sydney FC won 3–1 after extra time.
He made his A-League debut on 11 October 2014 against Melbourne City when he came on for Matthew Jurman after 69 minutes. He put in a promising performance as Sydney FC drew 1–1.
For the 2015–16 A-League season, Gersbach was given the number 3 jersey.
Permanent / 2016 / 2019
Permanent / 2014 / 2016
