NRL: Damien Cook re-signs with South Sydney Rabbitohs until 2023

Wayne Bennett has already pulled off a win for South Sydney, with NSW hooker Damien Cook agreeing to stay at the Rabbitohs until the end of the 2023 NRL season.

Already under contract for 2019, Cook, 27, has re-signed for another four seasons in a deal reportedly worth $4.5 million.

Former Brisbane mentor Bennett said re-signing Cook was a priority when he arrived to start his three-year Rabbitohs stint on Tuesday.

And Bennett didn't waste time getting his man, with the Rabbitohs securing Cook on a lucrative long-term deal that is believed to include an upgraded 2019 contract.

"I'm very excited to be extending my contract with the Rabbitohs and I'm happy to have my future sorted," Cook said in a statement.

"Souths has been my home for the past three years and I didn't think it would be possible to be able to secure things for the next five years, but I'm so happy that that will be the case.

"I've loved every moment of my time here, even the tough times, and I think we're building to something nicely."

Cook's signature finally ended speculation he may follow former Rabbitohs mentor Anthony Seibold to Brisbane.

The livewire rake, who made his South Sydney debut in 2016, became a hot off-contract commodity after starring in NSW's State of Origin series win and earning two Test caps this year.

"Damien has not only proven that he is a top level NRL hooker, he's shown that he has what it takes to compete at the highest representative levels of the game," Rabbitohs football manager Shane Richardson said.

"He has taken on every challenge that has been put in front of him and he has overcome them.

"Damien has become a leader amongst our squad and is a player that his teammates, at all levels, love to play with.

"We are very excited to have secured Damien's services for the next five years."