"I am not too sure what the situation is regarding that and need to speak to Steve to find out if I am entitled to play or not,'' Marshall said.
"I am proud Kiwi and won the last World Cup and would love to do it again.
"I am probably not playing well enough at the moment to get in the team, but if I can find form over the next few games, and the rules permit then hopefully I am allowed to play.''
It's believed the Rugby League International Federation would rule on the World Cup eligibility of any player without a club deal - something that could also affect fellow Kiwi star Sonny Bill Williams if he has not done a new deal with the Sydney Roosters.
Marshall said he's no closer to deciding where he rugby union future lies, and has had no further discussions with Auckland Blues coach John Kirwan.
The NSW Waratahs and Melbourne Rebels have also expressed lukewarm interest in the 2005 NRL premiership winner, but Marshall insists he unconcerned about what the future has in store.
"It's always good to have options, but I have six weeks left here and that is my priority at the moment,'' he said.
"I am not too worried about finding a contract because that will happen.
"I spoke to John Kirwan on the phone a few weeks back, but until I make a decision on what I want to do, there is not much to say.''
-AAP
