Kristy Giteau will join her brother Matt as Australian rugby internationals when she debuts for the Wallaroos against Samoa in a must-win World Cup qualifier this weekend.

The match in Apia will kick off at 1pm (AEST) on Saturday just 12 hours before Matt plays for the Wallabies against the Springboks in South Africa.

Kristy, 28, who plays for the Tuggeranong Vikings club in ACT, has previously represented her country in rugby league while also touring China and the USA with the Australian schoolgirls basketball team.

The winner of the match in the Samoan capital will secure the Oceania position in the 2010 Women's Rugby World Cup to be held in England, with New Zealand already qualified as defending champions.

Kristy Giteau will play on the wing against Samoa while Cobie Morgan is the other new face in the run-on side at centre.

Australia: Tricia Brown, Kristy Giteau, Ruan Sims, Kobie Morgan, Nicole Beck, Tiu Ormsby, Cheryl Soon, Debby Hodgkinson, Alexandra Hargreaves, Rebecca Trethowan, Chris Ross, Kate Porter, Kylie Pennell, Silei Poluleuligaga, Danielle Meskell. Res: Emerena Marsh, Seei Sau, Rebecca Clough, Dalena Dennison, Iliseva Batibasaga, Ashleigh Hewson, Sharni Williams.

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