Harlequins centre Matt Hopper will leave the club at the end of the season to join Oyonnax.
Hopper, who has represented the England Saxons, joined Quins in 2011 and has made 112 appearances for the Aviva Premiership side.
But he leaves at the end of the season to head to the PROD2.
"My time at Harlequins has been nothing short of amazing," Hopper said. "I've been fortunate enough to play in some memorable sides, alongside some unbelievable players.
"The chance to continue my career and make a change was something I could not pass up at this stage and I look forward to what the future holds. I leave with a heavy heart and a head full of great memories.
"From myself and my family, thank you to everyone I have met along the way, you made it what it was. I will always follow the club with immense pride and look forward to the success I'm sure it will enjoy over the coming seasons."