The Warriors are sweating on the fitness of forward trio Simon Mannering, Issac Luke and Charlie Gubb ahead of Friday's round two NRL clash against Melbourne Storm at Mt Smart Stadium.
Mannering and Luke suffered neck and rib injuries respectively before departing early in the second half of Sunday's 26-22 season opening home victory over the Newcastle Knights.
Luke clutched at his ribs after sending a pass in the leadup to centre David Fusitu'a's third try right on halftime. He showed further discomfort after nailing the subsequent conversion but returned after the break, lasting just three minutes before being replaced.
Mannering then headed to the sidelines five minutes later, after being slow to get up following a tackle on Knights fullback Dylan Phythian.
Gubb was concussed late in the match and will need to go through the relevant protocols this week before being cleared to play.