Two European-based Socceroos have warned their yet-to-arrive teammates face a difficult job beating jet-lag and acclimatisation problems ahead of next week's World Cup qualifier against Qatar in Melbourne.

Newcastle United striker James Troisi and Polish-based midfielder Jacob Burns are the first of the overseas-based Aussies to arrive, stepping straight off the plane and on Melbourne's Telstra Dome for Socceroos training on Tuesday.

The rest of the Socceroos' European stars, including Harry Kewell, Tim Cahill and Mark Schwarzer, are scheduled to arrive from Sunday night onwards ahead of the Qatar match at Telstra Dome next Wednesday.

All will have played club matches at the weekend, and the majority will be expected to back up for their clubs the following weekend.

Troisi and Burns agree having to deal with the taxing 24-hour flight and the change from European winter to Australian summer temperatures so quickly will test their more credentialled teammates.

Socceroos coach Pim Verbeek is likely to roll the dice with his European stars and play as many of them as possible against the Qataris.

"It's very hard. I didn't get any sleep last night but at least I've got a week," said Troisi, who along with Burns arrived from England early Tuesday morning.

"It will be quite hard (for those who arrive later) but most of them have done it before and as long as they recover well, don't get any niggles in the weekend games, they should be fine."

Wisla Krakow player Burns, whose Polish league is in mid-winter recess, said the Socceroos' medical staff could prove pivotal.

"It can be done. It normally takes a day or two to start feeling right again," Burns said.

"The staff here are going to be doing everything to get the guys right, and I hope they will and they'll be able to play."

Qatar, ranked 40 places below Australia on FIFA's rankings at world No.88, are expected to arrive in Melbourne on Wednesday.

They are coached by Jorge Fossati, who was in charge of the Uruguayan team beaten by the Socceroos in the World Cup playoff penalty shootout in Sydney in 2005.

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