Grace Butters is sweating on the extent of a knee injury sustained in the one-goal loss to South Warrnambool which denied the Eagles a double chance come finals.

The Jaime Barr-coached side slipped from third to fourth spot, leapfrogged by Warrnambool.

It will now play Camperdown in an elimination final on Sunday.

Barr said the club was rallying around Butters and was unsure how much damage she had done to her knee.

"It (the injury) was the biggest disappointment for me," she said.

"She went up to the hospital and they said it was maybe lateral. She'll have an MRI during the week and see what it's like. She's done it before so she knew and didn't think it felt good."

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Barr said Butters had embraced the open grade challenge in 2019 and had worked hard to get a go. "Fingers crossed she gets a miracle," she said.

Teenager Laura Ritchie, who made her debut the previous week, was injected into the game in place of Butters.

South Warrnambool, which also drew with top-placed Koroit this season, finished in sixth spot.

Barr said the Mandy van Rooy-coached side was capable of playing finals.

She said the Eagles let a three-goal three-quarter-time lead slip as they watched their double-chance hopes evaporate.

"That's the way sport goes," Barr said.

"I knew that was the equation (that we had to win to stay in third spot) and I am extremely surprised South are not playing finals.

"They have a good, young side and the conditions didn't help us either.

"They got the first turnover of the last quarter and then it started bucketing down."

Barr is away for work this week with assistant coaches, twin sisters Skye and Jordyn Billings, to run training.

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