The slick Sky Blues beat Victory 1-0 in Saturday night's grand final rematch at Etihad Stadium, courtesy of a Thomas Deng own goal early in the second half.
Coach Graham Arnold hailed their resolute defensive performance but will spend little time basking in the glory of extending their unbeaten run against Victory to five games.
Arnold said they were only at '30 per cent' capacity and that he would spend the hours after the match assessing their next opponents South Melbourne, who they will meet in Wednesday night's FFA Cup semi-final at Lakeside Stadium.
"It's a great occasion for us," Arnold said.
"There'll be a big crowd at Lakeside and we'll be treating them like we treated Melbourne Victory - with total professionalism.
"And we expect to win the game.
"I haven't even looked at South Melbourne to be honest. I'll do that tonight and tomorrow. We'll look at the footage of them and see them but we've had a few people give us reports about them."
Sydney were beaten in last year's FFA Cup decider by Melbourne City and would hold all three pieces of domestic silverware if they were to take out the knockout tournament.
South Melbourne won their quarter-final against Gold Coast City by a whopping 6-0 but haven't played since, with the state league season having long finished, and will be at long odds to beat the A-League champions.
Arnold's side will be even stronger, too, with the certain return of left-back Michael Zullo from a minor hamstring injury.
Zullo's absence meant a reshuffle at the back for Sydney, with Luke Wilkshire filling in for him and Paulo Retre playing on the right - both players making their debuts for the club.
Arnold hailed Retre, who spent time with both Victory and Melbourne City, as the 'buy of the year' in terms of value for money.
"I've always liked him as a player. He can run well but technically he's outstanding and I was surprised that he never played much at Melbourne City and we're very, very happy to have him at Sydney," he said.
The Sky Blues will remain in Melbourne to prepare for the FFA Cup final and will fly in additional players before returning home for next Sunday's A-League clash with Wellington Phoenix.