In his first press conference back at the 'Nix, Rojas was glowing in his praise of head coach Giancarlo Italiano and explained how a Wellington defender helped get the move off the ground.
The 26-year-old is the first overseas import of Sydney's off-season as head coach Ufuk Talay looks to assemble a squad capable of competing on multiple fronts.
Melbourne City did everything they could to keep Tolgay Arslan at the Isuzu UTE A-League side, but the departure of the club's Player of the Season has now been confirmed.