Garbutt will accept the invitation, though a hearing has not been scheduled, a source told ESPN.com Monday morning.
Garbutt exited the penalty box in the second period of a 6-3 Anaheim victory and skated into Penner in the slot just as he released the puck, striking him with his shoulder in the head area. No penalty was called.
Penner had to be helped from the ice and did not return.
The in-person hearing allows the league's office of player safety more latitude in levying suspensions greater than five games in length, although the fact there is an in-person hearing does not guarantee there will be supplemental discipline.