Marshall, who spent all summer slugging it out with Reynolds for the vacant No. 6 jersey, has always maintained Reynolds was ''too good for reserve grade'', and told the Herald he would get the job done against the Knights.

It will be just Reynolds' fifth NRL game of the season after hamstring and groin problems have cut short his time in the reggies.

The sight of Reynolds and his energy for the final three rounds will offset some of the pain surrounding Farah, who continues to come to grips with the likelihood he will be denied a final-round Leichhardt Oval swansong.

"He'll tell you we had a bit of a tear last week,'' Marshall said.

"If that's his last game you don't want him to go out like that. When I spoke to him I could hear the hurt in his voice and it actually hurt me. It's hard to see your mate like that.

"I didn't want that to be our last game together.

"I know what it would have meant to play in that last game at Leichhardt. The way Robbie was talking in the [Brookvale] sheds, he might still be a chance.

"Grubby will bring lots of energy, experience, and he's someone who is hungry for an opportunity.

"I was hoping he'd get an opportunity against Manly. He warmed up with us. I'm sure he'll get his opportunity.

"I think he can add a lot to us. As dire as it might seem right now for our season, we're still a chance and there are rock-solid fans we need to turn up for. His injection could be just what we need.

"The way our rotation goes with our middles, we can't carry a back on the bench, so we don't have that typical No. 14 role.''

Reynolds is likely to be rotated with Elijah Taylor, who has been forced to slot into the dummy-half role the past fortnight.

Liddle lasted just six minutes in the Manly loss on Thursday night after he was accidentally sideswiped by Tigers debutant Tommy Talau who fell off a decoy runner.

The youngster has worked hard to overcome two shoulder reconstructions and was wearing Farah's famous No. 9 jersey for the first time all season.

Meanwhile, Luke Brooks was charged with contrary conduct for kneeing Jack Gosiewski in the head after a completed tackle, but can escape with just a $1350 fine with an early plea.

Brooks said after the game ''there wasn't much in it'' and ''it was a bit of a brain-snap''.