Teenage substitute Kwame Yeboah fired Brisbane Roar to the top of Australia's A-League with a stunning late winner at defending champions Central Coast Mariners on Sunday.

The 19-year-old Yeboah smashed an unstoppable shot past goalkeeper Liam Reddy, who had denied the Roar with a string of fine saves.

Yeboah's 89th-minute strike pushed the two-time champions Brisbane to the top of the standings by a point from Western Sydney Wanderers.

Italian superstar Alessandro Del Piero celebrated his 39th birthday with the winning penalty in a 3-2 win for 10-man Sydney FC over Melbourne Victory on Saturday.

Del Piero converted the spot kick just before halftime to settle an eventful game where all five goals were scored in the first half to end a run of three straight A-League defeats for the Sky Blues.

Sydney lost defender Marc Warren to a straight red card after tugging back Connor Pain when he was through on goal.

The Wanderers downed Melbourne Heart 1-0 with the winning goal coming from defender Shannon Cole early in Friday's match in Melbourne.

Wellington Phoenix are still searching for a first win of the season as they battled to a 1-1 draw with Perth Glory in Christchurch.

Three draws and two losses from five matches leave the Phoenix near the bottom of the A-League table despite playing some of their best football in recent seasons.

Dutchman Kew Jaliens and Adam Taggart scored as Newcastle Jets upset Adelaide United 2-1 for their first victory of the season.

The Jets survived a late Reds rally after Fabio Ferreira netted in the 71st minute.