Ulster forward Kieran Treadwell will leave the province at the end of the season to rejoin Harlequins.
The 29-year-old arrived at Kingspan Stadium from the Gallagher Premiership side in 2016 and has made 171 appearances in the white jersey, in addition to winning 11 caps for Ireland.
Treadwell made his international debut against Japan in 2017 and was a member of Andy Farrell’s side that won a series in New Zealand in 2022, appearing in all three Tests, as well as featuring in the final game of the 2023 Six Nations Grand Slam campaign.
He is a product of the Quins’ academy and made six appearances for the side before his move to Ulster.
“I arrived in Belfast eight years ago as a 20-year-old with a chance to represent Ulster and a dream of playing international rugby,” he said.
“I never knew when I arrived how much playing for Ulster would mean to me and how much I would love living here.
“I leave as a man who has represented the province over 170 times and fulfilled my ambition of playing international rugby.”
Ulster have previously confirmed that Juarno Augustus will be added to their pack before the 2025-26 campaign.
