South Sydney Rabbitohs forward Jason Clark has confirmed that 2018 will be his final season in red and green with the utility forward agreeing to join Super League powerhouse, the Warrington Wolves, on a two-year deal starting in 2019.

Clark, 28, was the Rabbitohs' first NYC under 20s captain in 2008, made his first grade debut in 2009, and has gone on to play 157 NRL games to date, all for South Sydney.

He represented City Origin on one occasion in 2015, but undoubtedly his career highlight so far was being part of the 2014 NRL premiership winning team that defeated the Bulldogs in the Grand Final.

Clark is pleased to have his future sorted and the path ahead for him and his family.

"I'm glad to have my contract organised with Warrington and I'm looking forward to the next chapter in my career over in England, but first we have a job to finish here at Souths," Clark said.

"The past 11 seasons have been a young boy's dream come true. All I've done is wear the red and green, and following discussions with Steve Price, Simon Moran and Karl Fitzpatrick, I'll be able to extend my career in the primrose and blue of Warrington.

"Warrington is a similar club to us here at Souths. They have a long and rich history which is something that attracted me to the Club.

"I'll also be able to team up with (former Rabbitohs team mate) Bryson Goodwin and his family which is exciting for me, my wife Lauren and my three daughters Milla, Andi and Billie.

"I'm glad that by heading to England I won't have to play against Souths, with the only exception being if we both qualify for the World Club Challenge!" Jason Clark

"I can't thank everyone connected with the Club enough for the opportunities I have been given to play for this team.

"I want to thank all of my team mates, coaches, the staff and management, sponsors and of course our brilliant Members for all of their support over the years, including everyone from Souths Juniors and those who helped me become an NRL footballer. It means so much to me and my family.

"I'm so lucky to have received the support that I have and I've made friendships that will outlast my playing career. They will last for a lifetime. Some of my biggest supporters are my mum and dad and my sisters so I thank them as well.

"As I said, I'm looking forward to the next chapter, but my focus remains with the Rabbitohs for the rest of this season.

"We have many things still to achieve this year and that all starts with Friday's game against the Titans.

"I cherish every game I get to play and I'm looking forward to playing out the rest of this season in front of our loyal Members and supporters."

Rabbitohs General Manager of Football, Shane Richardson, said: "Jason has been simply an outstanding club man, always giving his best and always with a smile on his face.

"He will be welcomed back to the Club in some capacity in the future when he finishes his playing career.

"Warrington is a great club and they have signed a quality player and human being."