Kostopoulos was given the automatic suspension after he
cross-checked Bruins defenseman Mark Stuart in a 7-4 victory
The league also fined Montreal coach Guy Carbonneau $10,000,
which is an automatic penalty if a player gets an instigator
penalty in the last five minutes of a game.
Kostopoulos had earlier traded punches with the Bruins' Andrew Alberts, and Stuart got into a fight with Montreal winger Andrei Kostitsyn. Bruins captain Zdeno Chara was also given 19 minutes in
penalties for elbowing and fighting Guillaume Latendresse.