Of that group, only McMahon has won more than eight Test caps, with Hanigan and Dempsey just blooded in the June Test campaign.
Cheika is renowned for favouring tough robust players with a hard edge and 22-year-old Korczyk appears to fit that bill.
"He told me he enjoyed my physicality, I think that's a big thing with Cheik, he enjoys the physical play," Korczyk said at the Wallabies training camp at Cessnock in the NSW Hunter region.
"Being a lineout jumping back rower probably helps as well, so you've obviously got more options in the lineout."
He said Cheika told him he was looking at him as either a blindside flanker or No.8, with the former Korczyk's preferred position.
"I've played most of my footy at blindside, obviously six and eight go hand in hand sometimes," said Korczyk, who came to Australia at the age of 12 after being born in New Zealand, where he primarily played football.
Korczyk's progress was stalled by a knee injury that wiped out his 2016 campaign, but he managed to turn that enforced layoff to his advantage.
"I had time to hit the gym a bit more and sort of get my body prepared," he said.
"When I made my (Super Rugby) debut in 2015, I was probably s bit skinny but with that year under my belt, thats probably enhanced it a bit more."
- AAP