He then enrolled at Harvard University and spent one season with the Crimson, being named Ivy League rookie of the year, before he signed a contract with the Canadiens in 2010.

In 2015, Leblanc moved to Europe, joining HC Slovan Bratislava of the Kontinental Hockey League (KHL), though he played only seven games for them before being released.

[1] Growing up in the West Island town of Kirkland, Quebec,[2] Leblanc skated from the age of three and entered organized hockey two years later.

[3] After playing with Lakeshore, it became apparent that he could pursue the sport at a higher level; at the age of 15, he joined the Lac St. Louis Lions, a midget team based in Montreal.

As he wished to attend an American university, he went instead to the Omaha Lancers of the United States Hockey League (USHL) where he spent the 2008–09 season, playing in 60 games and finishing with 28 goals and 31 assists for 59 points.

[7] Coaches and scouts for the Canadiens praised Leblanc for his speed, determination, goal-scoring ability, and his willingness to go to the corners for the puck.

[8][9] Canadiens General Manager Bob Gainey felt that Leblanc's decision to move to the United States to play in the USHL—rather than stay in his native Quebec with the QMJHL, which would have been the easier choice, would help his development as a player and displayed the type of character the team sought.

[16] Leblanc made his professional debut on October 27, 2011 with the Bulldogs, and scored three points, including the game-winning goal in overtime, to give his team a 3–2 victory over the Rochester Americans.

[17] After 14 games with the Bulldogs, in which he recorded 10 points, Leblanc was recalled by the Canadiens and made his NHL debut on November 30 against the Anaheim Ducks.

[21] He was recalled to the Canadiens early in the season and played eight games for them, going pointless before being sent back to the AHL, his NHL career was once again questioned.

[15] As Leblanc had failed to establish himself on the Canadiens roster, he was traded, on June 14, 2014, to the Anaheim Ducks in exchange for a conditional fifth-round pick in the 2015 NHL Entry Draft.

[23] A restricted free agent, Leblanc signed a one-year extension with the Ducks, though he spent the season with their AHL affiliate, the Norfolk Admirals, scoring 29 points in 71 games.

Visa issues initially prevented Leblanc from joining the team, so he was loaned to MsHK Žilina of the Slovak Extraliga.

[29] He was considered one of the Canadiens' biggest draft busts in the period between 2000 and 2009, having failed to reach the potential expected at the time of his selection.