Ospreys centre Tom Isaacs has signed a new two-year contract which keeps him at the Liberty Stadium until the summer of 2015.
Isaacs joined the Ospreys in the summer 2009, and although his first season was ruined by injuries he has become a key player for the side.
"I'm delighted to sign up for another two years," Isaacs told the club's website.
"I've thoroughly enjoyed my time here so far. I know that I've learnt a lot over the last four years and I feel I'm still learning every day when I come to work at Llandarcy. There's a great set-up here with some fantastic coaches.
"I've got some great friends here, it's a place where I'm really happy to be.
"I had a difficult first year due to injuries but I had great support and I was able to put that behind me. Over the last three seasons, and the last 24 months in particular, I've been able to play a part in what the team is doing and it keeps getting better for me.
"I've had a good run this season, and that's something I've really enjoyed. Like I said, I'm still learning a hell of a lot, from the coaches and my team-mates, but if I keep working hard I can hopefully cement my place in the team over the next two years."
Andy Lloyd, Rugby Operations manager, said: "Tom has done really well over the last 18 months, we've really seen him develop on and off the field. There's no getting away from his versatility, but he has been able to establish himself more and more as a 13 with some solid performances.
"He's capable of producing some really exciting moments, he can beat people and he's physical, which is a good place to start from. He's getting better and better, and we see Tom as a big part of our future."