Salford City Reds centre Sean Gleeson will join Hull KR on a three-year deal from next season.
The 24-year-old has scored 10 tries in 24 games for the Reds following a move from Wakefield Trinity Wildcats in 2011.
"Sean is a player that I've been watching for a while and will be a terrific addition to our squad next year," said Hull coach Craig Sandercock.
"He's been very impressive for Salford this season and, at 24 years of age, has the best years of his career in front of him."
Gleeson has also had spells with Wigan Warriors and Widnes Vikings during his seven-year playing career.
