Linesman Mark Shewchyk was injured during Thursday night’s game between the San Jose Sharks and St. Louis Blues.

The veteran official worked the first two periods, appearing at times to be in some discomfort.  He did not return for the third period.

The game continued with three officials: referees T.J. Luxmore and Furman South, with Travis Toomey the lone linesman.

No details were available regarding the nature of the injury or a timetable on when Shewchyk may be able to return to the officiating rotation.