Pettersson posted an assist in Thursday's 5-2 win over the Sharks.
Pettersson set up Jason Dickinson for an empty-net goal with 1:03 left in the contest. The 23-year-old Pettersson is up to 16 points, 69 shots on net and a minus-2 rating through 31 games. He's notched three goals and three assists in his last nine outings, which is a modest uptick in scoring but still a little less than he's fully capable of.