Sydney FC boosted by return of Robert Mak for Wollongong Australia Cup

The two sides will battle it out for a spot in the last 16 of the Cup at WIN Stadium on Sunday.

Sky Blues coach Steve Corica said it was a massive boost to have the Slovakian international for the contest.

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"He came back from holiday a little bit later than the other boys because he played international games in his break, so we gave him extra time off," Corica said.

"He has played in two of the pre-season matches so far which is good, so he's ready for the challenge against Central Coast."

The match is part of a massive triple-header at the stadium with the Wolves first and then reserve grade playing Sydney Olympic at 5:45pm and 7:45pm respectively in the NPL NSW competition.

Sydney FC have Shellharbour's Joel King and Dapto's Zac De Jesus in their squad whilst the A-League champions the Mariners are coached by former Wolves player Nick Mongomery.

Wolves coach David Carney is a Sydney FC legend himself, winning two championships and a premiership in his playing career.

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It promises to be a bumper crowd on Sunday. There was added buzz last month when the Wolves came up against Sydney's NPL side, with approximately 2,500 fans in attendance. With two A-League teams in town plus Wolves and Olympic, it is expected to be even bigger this time round.