BROCK GREACEN is the next Castleford Tigers player that could be heading for the exit doors. The former Newcastle Knights back-rower only joined the Tigers on a two-year deal ahead of this season. But he has been absent from Ryan Carr’s side in their past four fixtures, and Total Rugby League understands Castleford are looking to move him on. Greacen has played twelve games for the club, scoring two tries – including a brilliant solo effort in the home win over St Helens in May. Robbie Mulhern, Damien Cook, Mat Feagai, Tyrell Sloan and Alfie Johnson are all confirmed to be coming through the doors of the OneBore Stadium for next season.