The 24-year-old sustained the injury in last week's road trip playing Nunawading and has been receiving physiotherapy this week.

"I came down on it after doing a lay-up during the game but got back up and played out the whole game," Mansfield said.

"Later on that night it really stiffened up and was sore to walk on which freaked me out a little bit.

"I went to see the physio the next day and he said I had bruising under the knee.

"I have been trying to stay off it and didn't play my game down the coast yesterday - but I'm pretty confident it should be all right."

The Tornadoes take on Ballarat in a SEABL double- header at Ulverstone with the North-West Thunder men's team.

Mansfield was hopeful the Tornadoes could turn the tide for a win after losing their past three games by eight, five and nine points.

"Ballarat is definitely a potential win but they are a very good team and second on the ladder right now," she said.

"I think we match up well against them because they have a couple of good guards but I think we have the athleticism to guard them.

"If we do well on them we should be able to stop their momentum.

"But they also have a big presence with their US import Nya Mason inside so hopefully Nadeen (Payne) can do a good job on her as well."

Mansfield said three losses in a row, including two on the road last weekend, had been frustrating.

"We know we can compete with those teams so there is a positive that we know we can match teams that are at the top of the ladder.

"We need to finish our games off a bit better and our last quarter we seem to drop off so we need to make sure if we get a lead we can extend on it and secure the win."

The Adelaide Lightning WNBL recruit said she thought her form had been OK but a bit inconsistent so far this season.