Calgary Flames defenseman Dennis Wideman was suspended indefinitely by the NHL on Thursday after he cross checked a linesman during the Flames’ game against the Nashville Predators on Wednesday night.

In that game, Wideman was checked near the boards by Predators winger Miikka Salomaki. Wideman wanted a penalty, but none was called. Cameras caught Wideman cross checking linesman Don Henderson on his way back to the bench. Wideman wasn’t penalized and played the rest of the game. After the game, Wideman said he apologized to Henderson and the hit wasn’t intentional.

Wideman will have a hearing at League headquarters in New York City on Tuesday to explain his side of the incident. League commissioner Gary Bettman will then decide how long his suspension will be.

According to the NHL rule book, the minimum amount of games a player can be suspended for intentionally hitting a referee is 20 games. The only player to ever be given a lifetime suspension by the NHL is Billy Coutu, who was kicked out of the league after assaulting a referee after Game 4 of the 1927 Stanley Cup Finals and starting a bench clearing brawl.