"Moss could also be joined by former Melbourne City midfielder Paulo Retre at Moore Park next season with the Sky Blues understood to be deep in negotiations to sign the 24-year-old. Retre parted ways with City at the end of last season, making 53 appearances in four seasons with the club."
Source: http://www.theage.com.au/sport/soccer/sydney-fc-sell-star-goalkeeper-danny-vukovic-to-belgian-club-genk-20170621-gwvo49.html