Gareth McAuley has signed a new one-year deal to extend his career at West Brom.
The 37-year-old has scored seven goals this season, making him the Premier League's top scoring central defender and joint top-scorer at the club, with his contract due to expire in the summer.
After securing a new contract, he told West Brom's official website: "It's very pleasing. I'd like to thank the club, the gaffer and everyone here who helps me to stay fit to be able to play at this level.
"When I signed I just wanted to play in the Premier League and I knew that wasn't a given when I came here. But I've still got that desire sitting here today.
"I don't think that will leave me. It's a good thing because it keeps you motivated, keeps you pushing forward."
The Northern Ireland international joined the Baggies on a free transfer in 2011 at the age of 31 and has racked up 208 appearances including 187 in the Premier League.
This season, his longevity has been compared to other high-flying veterans such as Zlatan Ibrahimovic and Xabi Alonso.
"I've based my decision on physically being able to do it," McAuley added.
"If I didn't think I could I wouldn't hang about. The tests don't show any signs that I can't cope with it. I've worked for a living outside the football bubble and I will more than likely have to go back there one day.
"But as long as you can do this, the best job in the world, then you should continue and I'm not going to turn by back on it."