Salford City Reds centre Joel Moon could be out for up to two months after breaking a bone in his hand.
"His hand is currently in a cast and he's seeing a specialist today," said a Salford spokesman. "We expect he could be out for up to two months.
"It's obviously a big blow for us and Joel so soon after his ankle break."
Stuart Howarth and Shannon McPherson, who both suffered injuries during the same game, are expected to be fit to face Widnes this Sunday.
The Reds also expect former Wigan props Iafeta Paleaaesina and Jordan James to return from injury against the Vikings, but hooker Wayne Godwin remains sidelined with rib cartilage damage.