Alex Foster will be a Newcastle Thunder player from 2022, as the back row moves to the Betfred Championship club on a two-year deal from Castleford Tigers.
The 28-year-old has over 80 Super League appearances to his name, having made his professional debut with Leeds Rhinos back in 2013.
With 130 career games under his belt, he has also spent two years in the Betfred Championship, playing in the competition in 2015 with Featherstone Rovers and 2016 with London Broncos.
Joining Castleford in 2017, he proved an adaptable asset as he played a big part in the Tigers' run to winning League Leaders' Shield that year, while he scored his side's only try in 2017 Super League Grand Final.
The Gloucestershire-born back rower, who can also operate at centre and loose forward, also played in this year's Challenge Cup final as Castleford lost out to St Helens.
Speaking on his move to Kingston Park, Foster said: "It's down to the ambition of the club, the plan for the future and how this club is going to build over the next few years is really exciting for myself.
"The prospect of getting this club up to Super League would be one of the best achievements of my career. There is a lot of excitement around here and thought it was a great club and a great move for me at this point in my career.
Head coach Eamon O’Carroll said: "I'm delighted to have signed Alex for the next two seasons. He is a great player and a great person and I am really looking forward to working with him.
"He's going to add a load of experience and dynamism into our pack and I’m looking forward to seeing what he can achieve in our shirt.
"Alex is excited about joining and has fully bought in to what we are striving to achieve and I can't wait to get started with him and the rest of the squad."