Dunn played with his hometown Gatineau Olympiques of the Quebec Major Junior Hockey League last season, scoring 31 goals and adding 20 assists and 156 penalty minutes.
Drafted in the fifth round (138th overall) of the 2013 NHL draft, Dunn has recorded 116 points (61 goals, 55 assists) and 348 penalty minutes in 159 major junior career games with the Val-d'Or Foreurs and Gatineau.
He was traded by the Olympiques to the Rimouski Oceanic on May 30.
[He's] real confident with the puck now, getting it off his stick quick and no second-guessing. We need that. He's such a good guy in the room. He works so hard. That's the big thing. For not a big man, he just fights for every puck and when he scores, the guys appreciate that even more.
— Winnipeg Jets coach Paul Maurice on Mathieu Perreault, who scored two goals in win against Chicago Blackhawks on Tuesday