Wigan Warriors have signed Mitch Clark from Castleford Tigers and Jake Bibby from Salford Red Devils.
Prop forward Clark signs after two seasons at the Tigers, part of one was at loan at Featherstone Rovers.
He has played 23 Super League games, scoring three tries.
Meanwhile, Bibby joins his hometown club after four years at Salford Red Devils. He also had three loan spells at Oldham, North Wales Crusaders and Halifax.
He has since made 62 appearances for the Greater Manchester side, scoring 26 tries from the wing.
As well as confirming these two signings, they also had three players sign new contracts.
Joe Burgess and Chris Hankinson have signed deals until the end of next season, whilst Tony Clubb has signed on until 2021.