The 21-year-old from Bendigo fronted Australia's team reception in Sydney on Wednesday afternoon with a moon boot on her right foot.

Vlaeminck trained with the team on Monday, but did not play in Tuesday's final warm-up match against South Africa in Adelaide.

It's believed she has suffered a stress fracture, meaning she is unlikely to recover in time to play any part of the tournament, which begins Friday night against India in Sydney.

"Anything that requires a moon boot isn't overly great," team-mate Ellyse Perry said.

"The whole squad has their fingers and toes crossed for Tay but I don't think it's real positive. We'll probably know in the next 24 hours.

"From a player's point of view we're really supportive of Tay, she is a really important member of our squad and we wish her all the best. "

It's the latest in a long list of injuries for the youngster.

She has had two knee reconstructions as a teenager, further knee issues and a shoulder dislocation already in her career.

If she is ruled out, Australia will be able to apply to the ICC to have a replacement player brought into their 15-person squad.

It comes after former Australian star Mel Jones predicted Vlaemicnk could be the first female to hit the 130 km/h barrier.

"Once she has that confidence to just wang it down there. It's not unfathomable to say that she will be our 130km/h bowler," Jones, who played 66 games for Australia across all formats, told AAP.

"You don't want to put pressure on her, but I think that's capable.

"And if she doesn't she will generate the next generation of bowlers who want to be the next Tayla Vlaeminck."

- AAP

Read more: Tayla Vlaeminck passes biggest Test

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