WASHINGTON -- A linesman injured his left knee and was helped off the ice in Game 2 of the first-round playoff series between the Columbus Blue Jackets and Washington Capitals.
The NHL announced Monday that Barton dislocated his left kneecap and tore his quadriceps. He will have surgery to repair the injuries.
"Fortunately, the doctors told him this is the type of injury that you recover back to 100 percent," NHL senior vice president and director of officiating Stephen Walkom said.
Barton collapsed to the ice after his left skate knocked into a skate of Columbus forward Josh Anderson on Sunday.
The game was delayed for a few minutes with 48.1 seconds remaining in the second period.
Barton eventually was helped off the ice by a trainer from each team.
The period concluded with just one linesman on the ice.
Barton had been taken off on a stretcher March 27 in Edmonton, after he fell and hit his head after Connor McDavid accidentally collided with him.
Information from The Associated Press was used in this report.