South Sydney skipper Roy Asotasi is warning Manly to prepare for another star performance from Greg Inglis at Bluetongue Stadium on Friday.

Inglis looked back to his best against Parramatta last week as Souths chalked up their first win of the NRL season and Asotasi said the Queensland superstar is edging ever closer to his best form.

"He's improving, he's getting better with the more games he plays, he had a good game against Parramatta and he can come out of that with a lot of confidence," Asotasi said.

"I think he's improving every week, it's pretty tough for a guy who has had two lots of surgery in the off-season, hip and shoulder, to come back in round one and do what he did.

"He's a bit freakish at training, he just likes to get out there and do the stuff he does on the field, I think he had enough of rehabs for a couple of months so he's pretty excited to be out there with the boys."

Asotasi admits Souths were upset by criticism aimed at them following defeats in their opening two games of the season, but is confident their campaign will remain on track against an in-form Manly side.

"I guess it was disappointing that the media was riding us for the last couple of weeks, but in saying that, we're just happy to get the win and get people off our backs," he said.

"I thought the criticism was unfair, but we weren't worried about it, it was only round two not round 26 so we had plenty of time to prove ourselves."

Inglis will come up against another of the game's elite centres in the returning Jamie Lyon, who is back from a hamstring injury, and Asotasi predicted a bruising encounter against one of the most abrasive teams in the NRL.

"We saw last week (Jamal) Idris v GI and now you've got Jamie Lyon, it's exciting for us to watch but it's good to have GI on your side," he said.

"Manly have also got Brett Stewart back and they've got a fierce pack.

"It was a pretty brutal game they played against Newcastle onSunday, I'm expecting no different when we play them.

"We've really got to be prepared, they are a danger side."

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