Injured Penrith duo Jarrod Sammut and Wade Graham are both expected to be fit for Saturday night's vital NRL trip to Townsville to face North Queensland.

Sammut (ankle) and Graham (hip) both picked up injuries in their side's 27-14 win over Canberra, but it appears neither is serious enough to see them miss any games.

Graham trained with the remainder of the squad on Monday while Sammut was restricted to the weights room.

But it appears the reinforcements in the pack are still some way off with representative pair Luke Lewis (toe) and Frank Pritchard (hand) another week away at least.

The Dairy Farmers Stadium match has taken on season-turning proportions following the Cowboys' loss to Wests Tigers on Sunday - with both clubs now on 22 competition points and in danger of dropping out of the top eight.

The Raiders will learn on Tuesday whether NSW backrower Tom Learoyd-Lahrs or skipper Alan Tongue will be fit to take on the Tigers.

Scans are expected to confirm Learoyd-Lahrs will miss 1-2 weeks with a knee injury, while the Raiders are waiting to see how Tongue's rib cartilage complaint pulls up.

Gold Coast's Nathan Friend is in extreme doubt for the local derby against Brisbane on Friday night with an ankle injury, the Titans rake to undergo scans on Tuesday.

Cronulla backrower Anthony Tupou will miss 2-3 weeks with a hamstring injury, though there is a chance his loss could be offset by the return of former skipper Paul Gallen.

Gallen hasn't played since finally giving in to bone bruising on his shoulder following the Sharks' round 16 loss to the Sydney Roosters.

St George Illawarra are tipped to have Jeremy Smith available for the trip across the Tasman to face the Warriors on Sunday, Smith having been sidelined since the last clash between the two sides in round eight.

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