Women's Minister Louise Upston has her leg in a cast, after a mishap during a netball tournament involving Australian and New Zealand MPs in Sydney.

Although the "Parly Ferns", New Zealand's parliamentary netball team, played their way to victory over two teams of Australian MPs yesterday, Ms Upston, the co-captain, missed most of the action after injuring herself in the warm-up.

The 44-year-old was taken to hospital with a suspected torn Achilles tendon, and about 10pm tweeted: "Got a cast on now and good to go."

Her press secretary said the exact nature of her injury had not been confirmed, but she was in a lot of pain.

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The team, which also included Labour's Louisa Wall - the co-captain and a former Silver Fern - as well as MPs Amy Adams, Nanaia Mahuta, Poto Williams, Sue Moroney, Meka Whaitiri and Jo Hayes, played their way to a 14-10 victory over the Australian Federal Government in the final

Ms Upston later tweeted, "Amazing group - so well done and I'm sorry I missed most of it."

Earlier in the day, the New Zealand team beat New South Wales 26-10, and the two victories meant they took out the inaugural Diggeress Cup.

The MP's trip was self-funded.

Ms Upston's press secretary said the minister had co-captained the netball team for three years.

According to her National Party profile, she is a keen sportswoman who has done the Round the Lake Relay, the Lake Taupo Cycle Challenge, and the 63.3 km challenge - three half-marathons in three months.

The NZ politicians' win came as the Silver Ferns cruised to a 76-33 victory over Uganda last night. Some of the MPs, including Ms Williams, the member for Christchurch East, were lucky enough to catch the action.

The Silver Ferns remain unbeaten at the Netball World Cup so far.

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Today, they go head-to-head in a semifinal clash against England - who knocked out South Africa in their final round-robin match yesterday.

In today's other semifinal, Australia will meet Jamaica after the Sunshine Girls just scraped past Malawi 63-62 in their final qualification round match yesterday.