Konplete fraz sa a: Li te fè premye Elitserien l 'jwe ak Linköpings HC pandan sezon Elitserien 2012<unk>13. Pettersson te chwazi pa Philadelphia Flyers yo nan 7yèm tou, 198èm an jeneral, nan
2014 National Hockey League (NHL) Entwodiksyon Draft.