Coming off their worst NRL loss in recent seasons, the last thing South Sydney needed this week was to run into a Melbourne side stung by a Queensland Origin loss.

Any chance of complacency from the defending premiers at Gosford's Bluetongue Stadium on Saturday was wiped away on Wednesday night with the Storm's six Maroons representatives tasting an all-too-rare defeat.

The last-placed Rabbitohs hardly needed their opposition any more motivated after the wooden spoon favourites put in a shocker in a 38-10 defeat to Canberra on Monday night.

"Obviously we didn't perform well against Canberra down there, it was probably one of our worst performances," Souths skipper Roy Asotasi said.

"It's going to be a great challenge for us to come up against them, they are one of the form teams and the premiership winners last year, we've got to make sure we get things right.

"We've got to play more like a team than individuals. We're just not working together at the moment and that's something that needs to be addressed and that's something that can be fixed pretty quickly.

"I'm still very positive and confident that we can still get things together."

Coach Jason Taylor has stuck with the same combination that went down to the Raiders while the Storm have been forced into a late re-shuffle after star five-eighth Greg Inglis was ruled out.

Inglis is suffering from tendonitis in his knee, Storm medical staff saying they weren't prepared to take any risks with the Clive Churchill medallist.

"Usually a week to ten days sees it pretty right so he should be okay for next week," Storm physio Mary Toomey said.

"There just wasn't enough time to make it for tomorrow."

The Storm have taken a 20-man squad to Gosford for the game with either veteran utility Matt Geyer or Russell Aitken to come into the run-on side for Inglis.

A final decision is yet to made on Dallas Johnson's availability after the Storm lock was knocked out in the dying stages of Origin I.

Johnson has passed all the medical tests but it is believed Storm coach Craig Bellamy is still leaning towards resting the workaholic backrower.

Despite having nine representatives backing up from Origin I, the Storm enter the match as overwhelming favourites, having beaten Souths in their past five matches.

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