ADELAIDE United is set to be robbed of fielding Dario Vidosic and Serginho van Dijk.

Vidosic and van Dijk are certain to be summoned to World Cup duty on October 7 - hours before Adelaide faces Perth Glory away.

Vidosic and pending Indonesian international van Dijk may miss the Glory clash because the maiden round of the A-League clashes with FIFA's international match calendar.

Adelaide and Sydney are the only Australian A-League venues without commitments in the first round, which kicks off with the Newcastle Jets and Melbourne Hearts in Newcastle on October 8.

While missing Adelaide's first match was out of Vidosic's hands, the impressive 2010 FIFA World Cup Socceroo said representing the nation was an honour never to be knocked back. "I've had that taste now, I've been to a World Cup and I've played 13 or 14 games for the national team," Vidosic said.

"Every time I've been there, the boys have said good things to me."

A Football Federation Australia spokesperson yesterday confirmed hosting the stage three Asian World Cup qualifiers would be "open slather for all cities" but stopped short of pointing to either Adelaide Oval or Hindmarsh Stadium as a venue.

A SACA spokesperson said the "FFA had not had any discussions with regard to hiring Adelaide Oval for World Cup qualifiers" while Events SA officials fielded the inquiry from The Advertiser but could not provide an answer last night.

Vidosic is expected to receive a call-up to Socceroos boss Holger Osieck's friendly match on October 7 before an AFC World Cup qualifier on October 12 at home.

But Van Dijk's Indonesian duty depends on whether the nation overcomes Turkmenistan on aggregate this month. The Socceroos will know of their AFC World Cup qualifying fate on July 31, when the third round of Asian qualifying is drawn in Rio de Janeiro.

The Australians kick off their first World Cup match of the campaign on home soil on September 2, followed by an away clash four days later. The national team then returns home in October, plays two World Cup qualifiers away in November and ends the Asia group with a home clash on February 29.

Osieck has just one friendly - the Socceroos and Wales clash in Cardiff on August 10 - before planning his World Cup assault.

The German mentor is likely to name European-based Socceroos for the Wales match, while fringe Reds Socceroos Eugene Galekovic, Bruce Djite and Spase Dilevski would need to prove they're in form for a chance to be included in the October World Cup qualifiers.