Wasps have signed loose forward Jonathan Poff from New Zealand Super Rugby outfit Crusaders.
The 27-year-old flanker, who also plays for Tasman province, has played 17 times for Christchurch-based Crusaders since making his debut in 2009.
He has also featured for New Zealand Schools and Under-21s.
"I am looking forward to a different challenge in England after a couple of years of good experience in Super Rugby," he said.
Poff has found his chances in the Crusaders line-up limited by having All Blacks captain Richie McCaw ahead of him in the open-side flanker pecking order.
"It's been difficult to be behind such a great player as Richie McCaw," he said. "My opportunities to start have obviously been less than I would have liked.
"So I am coming to London Wasps with the aim of nailing down a regular spot in the team, even though I know there is a lot of good back-row talent there."
Wasps chief executive Chris Thomas said: "This is another strong addition to our pack for next season.
"Our coaches were very impressed with Jonathan's work-rate and tenacity. He is an excellent signing for the club.
"He has excellent leadership qualities and, having featured for a number of seasons in one of the best club sides in the world, he will bring a lot of top experience to the squad."
The signing comes a day after Wasps announced that props Lewis Thiede and Simon McIntyre and centre Chris Mayor would be arriving at Adams Park next season.