Montreal Canadiens forward Jesperi Kotkaniemi is taking full accountability for his costly penalty during Thursday's 6-5 shootout loss to the Vancouver Canucks.

Kotkaniemi, 20, was called for unsportsmanlike conduct midway through the second period for expressing his frustration toward the officials after Canucks netminder Braden Holtby tripped him with no penalty called. Vancouver scored on the ensuing man advantage to take a 3-2 lead.