Blues forward Oskar Sundqvist is facing a potential suspension in the Stanley Cup Final after delivering a blow to the head of Bruins defenseman Matt Grzelcyk.

Sundqvist had a hearing with the NHL’s department of player safety on Thursday after the team arrives in St. Louis.

Sundqvist was assessed only a two-minute minor penalty for boarding for the hit that knocked Grzelcyk out of Game 2 on Wednesday night — and possibly longer.

St. Louis Blues center Oskar Sundqvist (70), of Sweden, and San Jose Sharks center Joe Pavelski (8) battle for the puck during the first period in Game 4 of the NHL hockey Stanley Cup Western Conference final series Friday, May 17, 2019, in St. Louis. (AP Photo/Jeff Roberson)
St. Louis Blues center Oskar Sundqvist (70), of Sweden, and San Jose Sharks center Joe Pavelski (8) battle for the puck during the first period in Game 4 of the NHL hockey Stanley Cup Western Conference final series Friday, May 17, 2019, in St. Louis. (AP Photo/Jeff Roberson)

Boston coach Bruce Cassidy said Grzelcyk was in the NHL’s concussion protocol and listed as day-to-day. Several Bruins players took exception to the hit, including former Blues captain David Backes.

St. Louis is already without injured forward Robert Thomas. Zach Sanford would be the leading candidate to play in Game 3 Saturday night if Sundqvist is suspended.

The series is tied 1-1.

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