2015–16 Sydney FC season Mariners), when the club signed Matt Simon. The club then lost the services of talented Socceroos midfielder Terry Antonis when he was transferred to Greek powerhouse PAOK on 19 August 2015. On 25 August 2015, Sydney FC became the first club to utilise the "Mature Age Rookie" concept, signing Alex Mullen on a one-year deal. The club also announced the signing of veteran Sydney FC gloveman Ivan Necevski (who returned to club after a stint with New South Wales Premier League outfit Rockdale City Suns) alongside Sydney FC Youth captain, Jacob Tratt. Sydney FC began the regular season at home
2015–16 Adelaide United FC season was instated as the club's new manager for the 2015–16 A-League season. !rowspan=2|Competition !colspan=8|Record ! ! ! ! ! Total 2015–16 Adelaide United FC season The 2015–16 Adelaide United FC season was the club's 12th season since its establishment in 2003. The club participated in the A-League for the 11th time, the FFA Cup for the 2nd time, as well as the AFC Champions League for the 5th time. Despite delivering the club's first trophy since the inaugural season of the A-League in winning the FFA Cup, on 24 July Josep Gombau stood down as the manager of the club,