Utah Mammoth defenseman Sean Durzi is expected to miss a month of games because of an upper-body injury, the team announced Monday.

“Durz will be out a little while,” head coach Andre Tourigny said Monday, as he shuffled his lineup in preparation for a matchup with the Chicago Blackhawks.

Durzi took a hard hit moments before Dylan Guenther scored the game-winning goal in overtime against the Nashville Predators on Monday. Durzi immediately headed for the bench, where he held his shoulder in obvious pain.

Durzi missed 52 games last season after suffering a shoulder injury just four games into the campaign. He was sidelined for five months after undergoing surgery.

Utah’s defense was plagued by injury last season. But this time around, the Mammoth should be better equipped to deal with the unknown after picking up veteran Nate Schmidt in the offseason and adding rookie Dmitri Simashev to the roster.