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Kewell unexpectedly quit Victory after just one season to remain with his family in England, where his wife's mother is gravely ill.

Postecoglou said while he was disappointed to lose the Socceroos star, he accepted the decision and will look overseas to fill the void.

"It's not just about getting a name, he's got to fit into the structure of what we're doing and the kind of player that we want to bring to the club," Postecoglou said today.

"I don't think there'll be an easy local or Australian solution to the kind of player we need. Harry was a fairly unique individual.

"He's had the highest profile of any Socceroo in the last 30 years and maybe ever. That's hard to replicate in another Australian player."

Postecoglou feels the Victory faithful were yet to see the best of Kewell, who scored eight goals in 25 matches last season after arriving amid great fanfare in August 2011.

"I've always said with foreigners - and I treated Harry as a foreigner because he hadn't played football in Australia before - when you come to this league it's usually the second year they tend to get comfortable and understand how the league works," Postecoglou said.

"I was very confident that Harry would have played his best football this year.

"The team struggled last year, and as a striker and an attacking player, when your team struggles it's very hard to stand out.

"In many respects he did the hard work and laid a foundation last year but unfortunately he can't reap the rewards."

Postecoglou said the recruitment of Kewell was a worthwhile investment and he was confident the former Leeds United, Liverpool and Galatasaray player will continue to feature at international level.

"I don't know him that well, but I reckon he's got the next World Cup in mind as a possibility to still make an impact," Postecoglou said.

"From an Australian point of view it's really important that where he goes he gets comfortable quickly and is successful, because I think he's still got a role to play at national-team level."

Former Adelaide United playmaker Marcos Flores is a free agent after he was released by his Chinese club last week and over the weekend, he told au.fourfourtwo.com of his hope to return to the A-League.

The Reds have had to admit they can't afford him under their salary cap, but with Victory freeing up substantial wages budget after Kewell's exit and a marquee visa spot available, they could afford Flores demands.

However Postecoglou may be reticent about enlisting the fans favourite from another club after a policy of sourcing his own players while at Brisbane Roar.

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