Osieck sprung a surprise with the strength of his squad for the two friendlies against Switzerland and Poland in early September, calling up his best available 20 for his first two matches in charge, with no new faces.

With the Asian Cup only four months away, it was thought the German might want to assess his other options in the handful of friendlies as it was widely considered that several of the Socceroos' best won't be available for the tournament because of club commitments.

Under FIFA rules, the players must be released for the Asian Cup, but it was suspected that Osieck might not rock the boat with European clubs at this stage, with a long World Cup qualification campaign to follow.

But the new coach says he wants to win the tournament and he has sought assurances from the top line Socceroos that they will be available, despite pressure from their clubs.

"From all the players I have spoken to, I get a clear yes. The rest I will check out when we are together in St Gallen. I will talk with everybody about it," he said.

"I'm sure that the players who are on the list here will be committed to play for Australia in that tournament.

"It is a major tournament and I want to go there with a team that definitely has the option to be not only successful, but finish the tournament on top.

"If you have players with the experience of two World Cups and playing in decent leagues, then the likelihood to achieve the target is greater than just playing inexperienced 19 or 20 year old boys."

Osieck said he had been through a similar club versus country battle when in control of Canada 10 years ago and said he was ready to fight for his best players.

"It was similar with Canada," he said. "We played the CONCACAF Gold Cup in February and we had the same issues.

"All players played abroad and the clubs were reluctant to send the players, so we really had to fight. "The players were a little bit reluctant at the beginning as they feared repercussions from their clubs.

"They really got into the tournament and they got more and more hungry and finally we won it."

Despite naming just four players in his first squad who did not feature in the World Cup, he insists the door is open to others over the next few months to prove they are worthy of selection in the Asian Cup squad.

He added: "I will give the players who have been in the squad, the opportunity to show me what they can do.

"You have to start somewhere and you can not make a radical change with players you don't even know.

"Therefore you go with the players you know already. Of course, the door is open to other players."