"I've been impressed with the way he's gone about improving his game and what he brings in terms of team dynamics.
"Every area the coaches have asked him to improve he's worked on and we're seeing good results."
Tevaga has been an impactful player throughout his time with the Warriors, but it starting at lock, hooker or in a utility role off the bench. In 2018, Tevaga was named the competition's Interchange Player of the Year, and is the fourth longest-serving player signed to the club.
Throughout the 2021 season, Tevaga has continued to be energetic and reliable on the pitch, averaging 30 tackles and 90m in through 12 games.
"I always wanted to stay here. I love the club and I love where we're headed," Tevaga said.
"I'm just glad to have my future sorted out now so I can get on with the rest of the season."