Souths are hoping Greg Inglis doesn't turn on the heroics as he counts down his Storm career, starting with their must-win NRL clash on Sunday at AAMI Park.

Inglis finally settled his future this week, linking with Brisbane for two years, and with the Storm unable to earn any competition points due to salary-cap cheating, he now only has four games remaining with his club.

With their NRL season on the line, the ninth-placed Rabbitohs have named Colin Best and Beau Champion in the centres after both missed last weekend's golden-point win over Wests Tigers.

English import Sam Burgess also returns from suspension at lock in place of Souths' latest injured forward Jason Clark (knee).

Champion, however, is in some doubt, after he had his knee drained on Thursday which was a complication from a cork.

"I'll see how it's feeling ... but all indications are the knee feels alright now because I've had the fluid drained out of it," Champion said.

"I'm still 50-50 whether I play or not but it's a big game so hopefully I can hold out until then."

If he doesn't play, young gun Dylan Farrell, who scored a hat-trick on debut against the Wests Tigers, will be called in to face Test centre Inglis and Champion thought he was up to the challenge.

"Dylan played fantastic last week, he showed he's up to this level and it's another big challenge for him," Champion said.

"If he just worries about his own job and doesn't focus too much on Greg, he can do the job just as well as anyone.

"If you start worrying too much about Greg it takes the focus away from other players like (Billy) Slater and (Cooper) Cronk and (Brett) Finch so you've just got to go into the game worrying about yourself and try and do the best you can."

Champion said he thought Inglis could be at his best now his protracted contract negotiations were over.

"I suppose he'd want to go out and play well every week but he's got all that stuff off his head now and he can just concentrate on footy," he said.

"It's always good to play against a player like that and a good chance to test where you're at but hopefully he doesn't play too well."

While the Storm produced their worst performance of the year against Manly last round, with a 26-6 loss, Souths turned in one of their most courageous victories.

Champion said it had given the side a massive boost.

"It could be what keeps us alive, that was a real big thing," he said.

"I think it gives the boys a lot of confidence that no matter how down and out we are at any stage in the game we can fight back and win and I think the boys will take a lot out of that."

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