Wales international midfielder Jack Collison has signed a new long-term deal with West Ham.
The length of the 22-year-old former Hammers academy player's new contract is undisclosed.
Collison has made 53 first-team appearances, scoring five goals and has also won 10 international caps in a career blighted by injury.
He told the club website: "It's nice to have the security of knowing my future is with West Ham."
In a 14-month spell on the sidelines, the midfielder underwent knee surgery in May 2010 before returning the following year in West Ham's 1-1 Premier League draw with Blackburn on 7 May.
Collison had been linked with a move away from Upton Park the summer following West Ham's relegation to the Championship but he said he was delighted to be part of the club's future plans.
"I look around and see what they are building and I want to be a part of the future," he added.
"We definitely have competition for places in the midfield, but that's what you want because it brings the best out of you."