Pettersson, 19, was selected by the Flyers in the seventh round (No. 198) of the 2014 NHL Draft.
The 5-foot-9, 187-pound defenseman played the past two seasons in the Swedish Hockey League with Linkoping, where he played 62 games. Pettersson represented Sweden at the 2014 World Junior Championship, winning a silver medal.
I loved being in the jerseys again and they worked some magic for us. It was weird in warm-ups, seeing No. 22 in that jersey and thinking he’s [Mike Gartner], and No. 8 reminds you of Danny Briere … every number had me thinking back to the guys who wore them and smiling.
— Coyotes captain Shane Doan on wearing Kachina-style throwback jerseys in a 3-2 victory against the Canucks on Thursday