Warriors chief executive Cameron George insists Ata Hingano remains a big part of their future despite signing experienced five-eighth Blake Green to a three-year deal.

Green's signature was confirmed on Tuesday after the 205-game veteran was granted a release by the Manly Sea Eagles.

The 31-year-old, who is likely to start in the halves alongside Shaun Johnson next season, brings much-needed experience and depth to the Warriors' playmaking stocks.

MARK NOLAN/GETTY IMAGES Blake Green has signed with the Warriors until the end of the 2020 season.

Although, his arrival comes after Hingano also accepted a three-year contract extension in June.

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The 20-year-old Tongan international attracted interest from several clubs at the time and he may be tempted to reconsider his future if he finds his path to first grade blocked at Mt Smart.

But after meeting with his manager, George played down that scenario and said Blake's recruitment has not altered the club's opinion of the former Junior Kiwi.

"We met with his manager this morning and had a really good discussion. We'll have a chat with Ata at the right time when he's finished with his role with Tonga," George said.

"We believe Ata's got a great future with the club and he will benefit greatly playing alongside Blake Green. No one's guaranteed their spots and the competition will certainly be beneficial to the club."

Asked if he would consider releasing Hingano if a request came through, George said: "There hasn't been a request put forward. For me, Ata is a big part of our future."

After making his NRL debut at the end of the 2016 campaign, Hingano showed plenty of promise in his 13 appearances last season.

He has since played a key role for Tonga at the World Cup, steering the star-studded forward pack around the park during their run into the semifinals against England on Saturday.

As Hingano prepares for the biggest game of his brief career so far, Tongan teammate Sio Siua Taukeiaho believes he is ready for a regular spot in first grade.

"He's the youngest bloke in the team but all the big boys respect him," Taukeiaho said. "In his role as a half he needs to control the players around the field and he's doing a good job for us at the moment.

"I think he deserves a start wherever he goes."

Meanwhile, the Warriors will be Green's sixth NRL club on top of stints in England with Hull Kingston Rovers and Wigan.

After starting his career at the Eels in 2007, Green played for the Sharks and Bulldogs before heading to the UK, where he won the Challenge Cup-Super League double with Wigan in 2013.

He has excelled since returning to Australia, helping Melbourne to the grand final in 2016 before striking up a strong combination with Daly Cherry-Evans to lead Manly back to the playoffs this year.

Green will be 34 by the time his contract is up at the Warriors. But George believes Green's big-game experience will be crucial to the club and dismissed any concerns about his age.

"Blake's always played a steady hand and a leadership role in teams ever since he's been a young kid. To be fair, he's probably always played like a 30-year-old even when he was 21," George said.

"He's a deep thinker around the game of rugby league and sees our organisation as one that he can add value to and hopefully we see the real benefits of that."

Green is the club's eighth new signing after Tohu Harris (Melbourne), Leivaha Pulu (Gold Coast), Gerard Beale (Cronulla), Adam Blair (Brisbane), Peta Hiku (Warrington), Matiu Love-Henry (Brisbane) and Agnatius Paasi (Gold Coast).

"We're very comfortable where we've got our roster to now" George said. "The important thing through our recruitment strategy going into 2018 was the creation of depth and competition for spots and we've certainly been able to achieve that right across the park."