He is expected to miss at least a week.
"I'm going to take the next few days and ice it down," Dumont said. "There's too much swelling to see if the muscle's going to be all right."
After a faceoff in the Carolina zone, Dumont was hooked in the midsection and twisted around by Carolina defenseman Aaron Ward. Dumont fell on his stomach and was unable to pick himself up without help. He left the ice writhing in pain and could not put any pressure on his right leg.
"It actually happened the shift before," Dumont said. "I went for a rebound and fell on my hip. I thought it was just a bruise. After the faceoff, I tried to go around the guy and I felt it pull again. It was very painful."
Heading into the game, Dumont led the Sabres in goals (11) and points (25) and was tied with center Chris Drury for the team lead in assists with 14.
Drury also is out of the lineup after separating his shoulder on Dec. 16. He has missed three games, and coach Lindy Ruff said he won't be available until Monday, at the earliest, when the Sabres face the Hurricanes again.
To help offset the losses, the Sabres called up forward Jason Pominville from AHL Rochester after the game.
Copyright 2003 by The Associated Press
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