Sydney Roosters have signed up-and-coming forward Tinirau Arona to a new two-year deal to keep him at the NRL club until the end of 2014.

Arona, who turned 23 on Tuesday, joins teammates Aidan Guerra, Anthony Minichiello, Jared Waerea-Hargreaves and Joseph Leilua in signing contract extensions in the last three weeks.

“I’m so happy to commit to the Roosters. The club has been really good to me and I’m excited to be a part of the team for another two years,” said Arona, the reigning Cook Islands player of the year.

Roosters coach Brian Smith was pleased with the signing after Arona impressed in Sunday’s 24-6 win over Newcastle.

“‘T’ has worked really hard to get himself to where he is and had his best game of the season in our win against the Knights last weekend,” he said.

“With his great work ethic, he will only continue to grow as a player over the coming seasons and we are pleased to have him as part of our young and developing forward pack for another couple of years.”

Arona has made 22 NRL appearances since his debut early last season.