Castleford forward Jacob Emmitt has agreed a new two-year deal with the Super League side.
The 23-year-old has been an ever-present for the Tigers this season having joined from Super League rivals St Helens in 2010.
"We're really excited to have him. Jake plays good minutes and is always developing his game," head coach Ian Millward said.
"It's a big plus for the club moving forward and for the season."
Emmitt added: "It's great to be here, I'm really happy it's all done and dusted.
"This season is still in our own hands and we're hopefully going to make the play-offs by ending the season strongly and hopefully by Saturday night we'll be in the next round of the Challenge Cup."