Canberra Raider star Joe Tapine is no certainty to line up against the Dragons this weekend after suffering a rib injury in Saturday night's loss to Penrith.
Tapine was unable to finish the 6-26 defeat at GIO Stadium due to the ailment, placing the 28-year-old in doubt for his side's Round 22 clash with St George Illawarra.
The Raiders confirmed on Monday that Tapine will require further assessment on the rib injury, with the in-form forward needing to prove his fitness in the next 24 hours.
Semi Valemei joins Tapine in suffering a rib injury and also faces further assessment on Tuesday before the club can confirm his selection status.
Meanwhile, Canberra will likely be without Ryan Sutton due to a head knock sustained in the Round 21 loss to the Panthers, with the Raiders prop entering concussion protocols and facing further tests on his ability to feature this weekend.
Canberra will confirm their squad for Round 22 at 4:00pm (AEDT) on Tuesday, before hosting the Dragons at GIO Stadium on Sunday afternoon at 2:00pm.