Robert Bortuzzo has been fined for a trio of cross checks he threw on Brock Nelson during Monday’s game between the New York Islanders and St. Louis Blues.

The incident occurred during the second period, when Bortuzzo, the Blues defenseman, took exception to Nelson colliding with Magnus Paajarvi away from the puck, and delivered three cross checks to the Islanders forward.

The first knocked Nelson to the ice. Bortuzzo then delivered two more to the back of Nelson while he was down on the ice, earning two penalties on the play.

Following the game, the NHL’s Department of Player Safety announced it had fined Bortuzzo $3,091.40.