A volunteer marshall at the AT&T National golf tournament at Bethesda’s Congressional Country Club was injured Friday morning when he drove a golf cart into one of the nylon ropes that separate the course from the areas for fans, suffering a severe cut to his neck.

“He’d been going full force,” said Rick Elion, a doctor from Bethesda who happened to be nearby. “The twine hit him just below the chin.”

Elion said the man’s arteries were cut on both sides of his neck, and he was bleeding profusely. Elion and others nearby helped slow the bleeding by wrapping the man’s jacket around his neck, he said. A fan called 911, and medical personnel stationed at the tournament site soon arrived.

Emergency responders took the volunteer to an area hospital, according to a statement from tournament director Greg McLaughlin.

Read more: The Post’s golf coverage