The Vikings are searching for a temporary long snapper after Kevin McDermott suffered a dislocated left shoulder in Saturday night's 16-0 victory at Green Bay, according to McDermott.
McDermott was injured on a punt just before halftime, after officials mistakenly moved the chains on an Adam Thielen catch that wasn't a first down. Quarterback Case Keenum's incompletion, thought by the Vikings to be on first down, was on third-and-1, which led to the punt.
"It was the punt that shouldn't have happened just before halftime," McDermott said Sunday. "I guess I have the refs to thank for that one."
McDermott, who said his left arm got "caught at the wrong angle" while he was blocking, had suited up in all 48 games since joining the Vikings three years ago. He will miss at least the season finale against the Bears while hoping to return for the playoffs.
"I'm not really sure what the timetable is," McDermott said. "But I'm hoping to come back."
Filling in at long snapper in Saturday night's second half was tight end David Morgan, who only recently stepped in for former backup Blake Bell, who was placed on injured reserve this month.
Morgan successfully snapped for three Ryan Quigley punts and two Kai Forbath field goals, but the Vikings will likely sign a more experienced replacement while McDermott is sidelined.
They will bring in free agents for tryouts Tuesday, according to coach Mike Zimmer.