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 Gabala FC season and Samir Zargarov also joined from other Azerbaijan Premier League clubs, Sumgayit FK and Simurq PFC respectively. Sergei Zenjov moved from recently relegated Russian Premier League side FC Torpedo Moscow, Vitaliy Vernydub from FC Zorya Luhansk, Oleksiy Antonov from FC Aktobe, and George Florescu from Astra Giurgiu. In: Out: In: Out: 2015–16 Gabala FC season The 2015–16 season was Gabala FK's 11th season, and their 10th in the Azerbaijan Premier League, the top-flight of Azerbaijani football. Domestically, Gabala finished 3rd in the Premier League for the third season in a row and reached the Semifinals of the Azerbaijan Cup where