Experienced forward, Griffin joins York after spending two seasons at Wakefield Trinity, where he was in superb form in the back row as they returned to Super League last year at the first time of asking.

He’s made more than 300 career appearances since his debut in 2008, having also played at Castleford Tigers, Hull FC and Salford Red Devils, where he played alongside his brothers Darrel and George.

In his time with the Black and Whites, he became a Challenge Cup winner, being part of the team that beat Wigan in 2017.

The move reunites Griffin with Knights’ head coach, Mark Applegarth, who originally signed Griffin for Wakefield in 2023 from Hull FC.