Gallen still touch and go for Sharks

Darren Walton
Paul Gallen is still unsure whether he will be able to return from a knee injury against Canberra

Paul Gallen remains in doubt for Cronulla's NRL clash with Canberra in the national capital on Sunday.

Despite surviving a full training session on Thursday, the veteran still needs to get through Saturday's captain's run before Sharks coach Shane Flanagan gives him the all-clear.

Flanagan says he won't risk Gallen, who hasn't played for a month since suffering a knee injury that was expected to sideline him for four to six weeks.

The oldest player in the competition will continue physiotherapy treatment on Friday and Flanagan isn't putting a percentage figure on his likely availability.

"So far so good. He just needs to improve right up to the game. He's done everything so far," Flanagan said of the 36-year-old.

Cronulla have learnt from skipper Wade Graham's hamstring setback not to rush their injured stars back too early.

With fellow senior foward Luke Lewis (calf) and fullback Josh Dugan (ankle) also in the casualty ward, Flanagan said the Sharks can ill afford to suffer any more injuries.

"He (Graham) seemed to be okay but another week would have made a difference," the coach said.

"We won't be pushing them if they're not 100 per cent right.

"Whilst it's a really important time of the year, there's still a lot of games to be played.

"Gal will know if he's right. But he's done everything he needs to do, he's up to date and he's on track."