It was with just over a minute left of the first period that Pettersson's tackle hit Frölunda's Jere Innala in the head. Pettersson received a match penalty after video assessment.
Today it was announced that he will be suspended for two games.
Three key factors are listed in the announcement:
"The tackle was awarded with some force and Jesper Pettersson could have avoided hitting the head of the opponent
– Jesper Pettersson left the ice with both skates in the tackle
– The opponent has a responsibility to protect themselves better in the situation (mitigating)
Watch the tackle in the player above.