Goals from Melbourne Victory's star imports Ola Toivonen and Keisuke Honda proved decisive as they saw off Sydney FC 2-1 in a typically fiery Big Blue at a sold-out Jubilee Stadium.
After a tight opening exchange, Victory made the most of their first clear chance as Ola Toivonen slotted home the opener in the 22nd minute.
The Swedish attacker bagging a goal on his starting debut after an incisive run from James Troisi saw the ball find its way to Toivonen at the far post, whose driven effort picked up a deflection to beat Andrew Redmayne.
Despite looking sluggish in the final third, Sydney FC would pull themselves level in the 35th minute as Paule Retre won a questionable penalty after a foul from Terry Antonis.
While Adam Le Fondre's initial penalty attempt was saved by Lawrence Thomas, the Sydney FC striker tapped home the rebound to make it 1-1 and secure his fifth goal in five A-League games.
Having been made to pay from the spot, Victory would restore their lead in identical fashion in the second-half after Jop van der Linden brought down Keisuke Honda.
The Japanese star making no mistake with his spot kick to make it 2-1 in the 71st minute.
That goal would prove the difference in the end with Sydney FC unable to break down a well-organised Victory defense as Kevin Muscat showed his side are very much title contenders this season after a slow start.