Joey O'Brien has signed a new contract with West Ham which will keep him at the club until 2016.
O'Brien played at Bolton and was brought to the squad by the Hammers boss in 2011.
O'Brien, 26, has played 16 times in this season and scored twice. He was also part of the side that helped clinch promotion from the Championship last term.
The club announced: “West Ham United are pleased to announce that Joey O'Brien has signed a new contract with the club until summer 2016.”