The Saints face an up-and-about Magpies outfit coming off a surprise 37-32 elimination final victory over North Warrnambool Eagles.

Meanwhile, Koroit is looking to bounce back after its 46-42 open grade loss to Warrnambool in its qualifying final.

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"If we can't beat Camperdown we don't deserve to be there," O'Sullivan said of the upcoming match at Camperdown's Leura Oval.

The Saints mentor was disappointed with her side's defensive pressure in the first half against Warrnambool.

But she was thrilled with its fight in the second half.

"I loved our comeback that was true Koroit style, to never give up," she said.

Warrnambool had an 11-goal lead at three-quarter time before the Saints stormed home and nearly snatched victory.

O'Sullivan said the Saints would focus on playing their own game well rather than plot to dismantle Camperdown.

The Magpies, who finished fifth, have been a force of the competition since the return of goal keeper Emma Wright from overseas travel.

In fact, Wright was named her team's best-on-court in her return game against Koroit in round 11.

Camperdown has won seven of its past nine matches including wins over Koroit, Port Fairy, Hamilton Kangaroos, South Warrnambool, Portland and two victories against North Warrnambool.

The Saints have won five of their past nine matches.

O'Sullivan said both teams played different styles and it was important her group stayed true to its game.

She said her team, which has a clean bill of health, played a steady game which relied on good decision-making.

She said the Magpies played a fast game and were physical in defence.

She said her players couldn't afford to let Camperdown rattle them.

Last time the two sides met, the Magpies took a 31-26 victory in a low-scoring round 11 affair.

It was almost a reverse of their earlier encounter.

The reigning premier outlasted Camperdown to take a 42-36 win in round two.

O'Sullivan said she was excited to take on the Magpies again.

"Absolutely, it's going to be a great game," she said.

Cobden and Warrnambool will play the open grade netball second semi-final on Saturday.

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