Australian doubles specialist Todd Woodbridge's Olympics hopes are hanging in the balance as he searches for a partner ahead of the Athens Games in August.

Woodbridge, who was knocked out of his Australian Open doubles semi-final at Melbourne Park, fears he may be left without a leading Australian to join him at the Olympics.

His first choice Wayne Arthurs is almost certain to team with regular partner, fellow Australian Paul Hanley, if both earn Olympic qualification by being in the world's top 10 doubles rankings by the June 14 cut-off date.

With the world's top 50 singles players eligible to play either singles or doubles at the Olympics and Lleyton Hewitt declaring himself unavailable for the Games, Mark Philippoussis looms as another option.

But if Philippoussis decided to concentrate on singles and shun the doubles in Athens, Woodbridge will find himself out in the cold.

"That means I could miss out," Woodbridge told AAP.

"I could play with Wayne Arthurs, but we may end up with three Australian players in the top 10 by the date of the rankings.

"Paul Hanley and Wayne Arthurs may play together. Then my other option is to play with Mark (Philippoussis).

"I would have to get him to commit to playing doubles which he doesn't normally do. He might only want to focus on singles.

"So it's a case of having to wait and see."

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