VETERAN prop Paul Jackson has been ruled out of Castleford's pre-season game against his old club at Wakefield on Sunday.
The 33-year old, who has missed a large period of pre-season with hand and back injuries, sustained a hand knock in training yesterday.
The club's medical staff have now decided a return to action on Sunday would be too early.
Tigers head coach Ian Millward (pictured) said: "Although we're very happy with Paul's recovery, our medical staff feel it would be in our best interests to allow him extra time to ensure he is right for the season.
"I see it as a big positive that we are very diligent in the care of players by making sure we don't rush them back. If it had of been a Super League game, the long term interests of the player is most important to us and he would not have played on Sunday."
Millward believes fans will see a keenly-contested contest at Wakefield.
He added: "I've had discussions with Wakefield coach Richard Agar and both clubs are playing their strongest teams possible. Our strongest teams will play the majority of minutes and there are some players who are named for back up and may not feature until the last quarter so it will be a tough game.
"Both teams need a game of high intensity as we're only a fortnight away from the start of Super League."