The Ospreys have announced that winger Hanno Dirksen has signed a new contract with the region.
The 23-year old has penned a three-year deal, making him the 13th player to re-commit so far in 2014.
"I'm very, very happy to have another three years" Dirksen told the Ospreys' official website.
"I haven't had much game time this year because of a long injury, but I'm back playing again and I just want to be on the field with the jersey as much as I can, to make up for missing so much rugby.
"There is competition for places on the wing now and you need that, to make you improve and be a better player.
"It's the last game of the season on Saturday so it's important I finish well, work hard over the summer and then come back for pre-season to hopefully get back to where I was before the injury.
"The region has been very good to me. It's where I've developed as a rugby player and is home for me, which makes it even more special to stay here."
Andy Lloyd, Rugby Operations Manager, welcomed the announcement, saying: "It's fantastic news that we have been able to secure Hanno and ensure he remains in this environment for the next three years.
"He's had a difficult time with injury and we have had to manage him on a daily basis since he returned to playing, but he is someone who can really establish himself at the top end of the game over the next three years.
"He is still only 23, so although he has already gained a considerable amount of top level experience, his best days are very much ahead of him, something that is true about a number of players in our squad.
"He has a real physicality, a forceful nature to his game, and a 'go-forward' attitude that can be crucial to how we want to play the game as a team.
"There are areas of his game where he needs to work hard, but that is where his time out has been very helpful towards his development as it's allowed him to educate himself more behind the scenes, and to understand the game in a different way.
"I think that will help him become a more mature, rounded player over time and that is a prospect that genuinely excites me and should excite all Ospreys supporters."
The other 12 players to have signed new contracts are Alun Wyn Jones, Sam Lewis, Ashley Beck, Eli Walker, Jonathan Spratt, Ben John, Ryan Bevington, Dmitri Arhip, Nicky Smith, Dan Baker, Dan Suter and Lloyd Peers. Matavesi is one of five new signings also confirmed, along with Rynier Bernardo, Dan Evans, Sam Parry and Gareth Thomas.