[citation needed] After playing for the NTDP, Morin joined the Kitchener Rangers of the Ontario Hockey League (OHL), where he scored 83 points in 58 regular season games in 2009–10.

[4] Twenty-three days later, he was traded to the Chicago Blackhawks as part of a deal that sent first- (24th overall) and second-round picks (both previously belonging to the New Jersey Devils) in the 2010 NHL Entry Draft (as well as Marty Reasoner and Joey Crabb) to Chicago in exchange for Dustin Byfuglien, Brent Sopel, Ben Eager and Akim Aliu.

[5] Prior to the 2010–11 season, Morin had a strong training camp[6] and made an impression on Blackhawks head coach Joel Quenneville,[7] while tying for second on the team in pre-season scoring with four points.

[8] However, the Blackhawks assigned Morin to their American Hockey League (AHL) affiliate, the Rockford IceHogs, to begin the year.

[8] Later that day, in a game against the St. Louis Blues where the Blackhawks won 7–5, Morin registered his first NHL point, a power play assist on a goal scored by Troy Brouwer and registered his first NHL fight in a bout with the Blues' forward Chris Porter, whom he fought three weeks earlier on November 9 during a Rockford game against the Peoria Rivermen.

[14] As anticipated, the Blackhawks recalled Morin prior to their next game against the Dallas Stars while placing Hossa on injured reserve along with Patrick Kane.

[15] During the game, on December 8, Morin scored his first NHL goal, beating Stars' goaltender Andrew Raycroft 1:36 into the second period of a 5–3 Blackhawks victory.

[18] He continued to bounce back and forth between Rockford and Chicago[19] but with the return of Fernando Pisani from injury just before Christmas Break along with the returns of Hossa, Kane and Viktor Stålberg from their respective injuries after the holiday break, Morin was not needed in the Blackhawks line-up and was subsequently loaned to Team USA for the 2011 World Junior Championships.

[29] On June 30, 2015, Morin was reacquired by the Blackhawks (alongside Marko Daňo, Artem Anisimov, Corey Tropp and a fourth-round draft pick in 2016) in a multi-player deal that sent Brandon Saad, Alex Broadhurst and Michael Paliotta to Columbus.

In 28 games, he contributed to the IceHogs with 22 points before on January 3, 2016, he was traded to the Toronto Maple Leafs in exchange for right winger Richard Pánik.

[31] Morin was directly assigned to the AHL's Toronto Marlies and appeared in just 13 games before he was again included in a trade (alongside James Reimer) to the San Jose Sharks in exchange for Alex Stalock, Ben Smith and a conditional fourth-round pick in 2018 on February 27, 2016.

[citation needed] On July 1, 2016, as a free agent, Morin left the Sharks to sign a one-year, two-way contract with the Tampa Bay Lightning.

[35] He returned to North America and agreed to play in the ECHL, signing a one-year deal with the South Carolina Stingrays on October 13, 2017.

[36] On December 2, 2017, Morin signed a one-month contract with SC Bern of the Swiss National League as a replacement for injured Mika Pyörälä.

Morin continued his whirlwind year by signing a one-year contract with the Swiss League's SC Rapperswil-Jona Lakers on January 9, 2018.