Joe Thornton has been suspended one game by the NHL Department of Player Safety.
The San Jose Sharks center was disciplined Monday for an illegal check to the head against Vegas Golden Knights forward Tomas Nosek at 16:45 of the second period in Game 3 of the Western Conference First Round on Sunday. Thornton received a minor penalty.
Thornton will be out for Game 4 at Vegas on Tuesday (10:30 p.m. ET; NBCSN, SN360, TVAS2, ATTSN-RM, NBCSCA). He is eligible to return for Game 5 at San Jose.
The Golden Knights defeated the Sharks 6-3 in Game 3 on Sunday to take a 2-1 lead in the best-of-7 series.
San Jose is trying to reach the Stanley Cup Final for the second time in four seasons. It lost the 2016 Final to the Pittsburgh Penguins in six games.