The Tonga international has one year remaining on his Titans NRL contract but has been granted a release to join recently appointed coach David Furner at the Rhinos.

"He was a real crowd favourite here, he'll be missed and it's sad to see him go but it extends his career and we couldn't stand in his way," Watt told AAP.

"He's a lovely guy and could become a real cult hero for them."

Hurrell debuted in the NRL for the Warriors in 2012 before reigniting his career with the Titans in 2016.

But the 116-game veteran played the bulk of last season in reserve grade after being dropped in favour of Brenko Lee.

Dale Copley, Brendan Elliot, the incoming Tyrone Peachey and rookie Jesse Arthars are all options in the centres for the Titans next season.

While sad to see him go, Watt said Hurrell's exit would free the club up to hunt for a strike outside back to complement their stocked forward pack.

However, he ruled out a play for Parramatta back Josh Hoffman to return to the club.

"That's probably our most pressing need," Watt said of their search for a strike centre.

Hurrell said the early exit was an opportunity too good to pass up.

"It is sad ... but it made sense for me to make the move now and secure a long-term contract and further my career in another competition," he said.

"I'm going to miss you guys, thank you for always keeping me honest."

Australian Associated Press