There is a certain code that players adhere to in the NHL in regards to fighting.
If a combatant wants to participate in a fight but is wearing a shield, he will take his helmet off. If he notices another fighter is seriously hurt, he will stop the fight.
And if a guy is on the ice or in a defenseless position, punches must stop being thrown.
There have been times where these codes have been broken and the player has had to answer for his sins. But in Tuesday's 2-1 win over the Lightning, Zac Rinaldo fell subject to one of these codes, having been accused of breaking the third code.
(Pictured: Zac Rinaldo knocks out BJ Crombeen. Photo by Elsa/Getty Images)