Simon Grix looks set to miss the rest of Warrington's Super League campaign after injuring his shoulder. The utility player became the latest addition to Wolves' long injury list in the 36-24 defeat at Hull.
Coach Paul Cullen said: "Our worst fear is that he has torn his rotator cuff. That's probably him for the season."
He also revealed Michael Sullivan played despite illness. "He's been in bed all week sick as a dog. How we got 80 minutes out of him I don't know."
Cullen, whose team have now lost five of their last six league games, added: "We've done it tough and we continue to do it tough."