Greg Inglis says Souths rookie hooker Apisai Koroisau will challenge Kiwi representative Issac Luke for a spot in the Rabbitohs’ starting side.

Greg Inglis is so impressed with new South Sydney hooker Apisai Koroisau he says he can see the NRL rookie unseating Issac Luke in the Rabbitohs’ starting side.

Kiwi No.9 Luke is out for up to 10 weeks with a shoulder injury, and Koroisau makes his first-grade debut in Sunday’s clash against Canberra at ANZ Stadium.

Koroisau has been in the Rabbitohs’ system for two years and represented Fiji at the 2013 World Cup. Inglis says he is ready to go.

“You had a glimpse of what he did at the World Cup for Fiji last year. He is well capable of filling that role there,” Inglis said on Thursday.

“He is a talented young player, no doubt about that.

“I think he is going to send a few shock waves and put pressure on Issac, to be honest.

“I have just been working on combinations with him this week. He has been in our system for two years now.

“I know how he works. He just has to work with our halves and I will filter in there.”

Queensland representative back-rower Chris McQueen said Koroisau would bring a different style of play to the Rabbitohs’ dummy-half role.

“Issac is a freak of a player. He is really strong for us. Api is probably a little bit different. He is pretty quick and good with the ball in his hands. I think he will bring his own twist for us,” McQueen said.