Greg Inglis has declared himself a certain starter for South Sydney’s NRL elimination final against Cronulla on Sunday.

Inglis has missed the last two matches for the struggling Rabbitohs after undergoing knee surgery.

The superstar fullback was sporting stitches on his troublesome right knee at the NRL final series launch at the SCG on Monday but said it was simply to help ward off infection.

“I’m definitely 100 per cent fit and ready to play,” Inglis said.

“I will be training all week. I have been building up to it. There is no question I will be out there.”

Inglis’ return is a huge boost to the Rabbitohs’ finals prospects. Souths have lost their past two games without him 47-12 to Brisbane and 30-0 to Sydney Roosters.

The Rabbitohs have won just one of their last five matches and Inglis said defence would be a focus for his side ahead of the sudden death match with the Sharks.

“We just have to turn up with the right attitude, that is what these games are all about,” the Rabbitohs skipper said.

“Finals footy is another step up and we haven’t had a great run but I believe we can turn that around.”

“Teams have been putting us on the back foot from the start and we need to change.

“We have played some quality sides but we really need to fix our defence up.

“There are no more second chances from here on in and it all starts on Sunday afternoon.”

Sharks skipper Paul Gallen said Andrew Fifita was likely to be fit for his return from a club-imposed suspension after picking up a leg injury at training.

“He will train with us this week and he should be right,” Gallen said.