Warriors halfback Shaun Johnson continues to struggle with a groin injury and is in doubt to play the Canberra Raiders on Sunday.

Johnson limped out of team training this morning after the injury which ruled him out of last Sunday's match against Manly flared up once again.

Coach Andrew McFadden said Johnson was unlikely to play again until the injury has healed with veteran Thomas Leuluai expected to again fill the No7 role against the Raiders, while 19-year-old rookie Tuimoala Lolohea will again provide cover from the bench.

"It looks unlikely at this stage that he will take his place. We definitely won't risk him if he's not 100 per cent," McFadden said.


"He's too important to us long term and he's the type of athlete that needs to be 100 per cent. He's built on speed and power and if he's not it will affect his performance."