Prop-forward Craig Huby to move from Castleford Tigers.
Huddersfield Giants also started putting plans in place for 2015.
They've made prop-forward Craig Huby their first new addition for next year.
The 28-year-old will move from Castleford on a four-year-deal.
Giants head coach Paul Anderson said: “Craig is having a stellar season and is a player I have long admired. His qualities are there for all to see and he has been a tower of strength for the Castleford club which he has served with such distinction over many years.
"He will bring new attributes to our forward pack which will complement many of the players around him and when I heard he was looking for a fresh challenge made him my number one target for next season.
Huby added: “I have had a wonderful time at Castleford with this year being an obvious highlight and it is with some sadness that I move on. However I decided that a fresh start and a new challenge would reinvigorate me and the club have known for some time that I would be moving on.
"I wanted the news to come out so that I can concentrate on the rest of the season with Cas then look forward to next year at the Giants."