After two seasons with the University of Michigan, Komisarek was selected seventh overall in the 2001 NHL Entry Draft by the Montreal Canadiens. He played his first NHL game in the 2002–03 season with the Canadiens. He re-signed with the Canadiens in 2007 for a two-year, $3.5 million, along with his friend Chris Higgins, who is also from Long Island. Komisarek scored his first NHL goal on March 20, 2006, against the Washington Capitals, where he was named the first star of the game. His willingness to stand up for his teammates and his hard-hitting style made him a fan favorite in the Bell Centre. In the 2006–07 season, Komisarek tied Mike Commodore of the Calgary Flames for most shorthanded goals scored by a defenseman with two. During the 2007–08 season, Komisarek led the league with 227 blocked shots and finished second in hits with 266 having played only 75 games. On January 5, 2009, Komisarek played in the NHL All-Star Game, where he was named a starter as voted by the fans alongside his Canadiens defense partner, Andrei Markov. In July 2009, Komisarek signed a five-year contract with the Toronto Maple Leafs worth an average of $4.5 million per season. On January 2, 2010, Komisarek injured his shoulder in a game against the Calgary Flames, and on February 3, it was revealed that he would require season-ending surgery. This also meant Komisarek would miss the 2010 Winter Olympics, as he was chosen to represent United States. On March 20, 2013, Komisarek was placed on waivers by the Maple Leafs. On March 21, 2013, he cleared waivers and with his permission was assigned to the Maple Leafs' American Hockey League affiliate, the Toronto Marlies, for the remainder of the 2012–13 season. With one year left on his contract with the Maple Leafs, Komisarek was released as a free agent after his contract was used in a compliance buy-out on July 2, 2013. On July 5, 2013, as a free agent, Komisarek signed a one-year, $700,000 contract with the Carolina Hurricanes. In September 2014, Komisarek was signed to a professional try-out contract by the New Jersey Devils, but was released from it shortly after.
Personal life
Komisarek is of Polish descent. His father, Roman Komisarek, was 24 when he moved to the United States, where he eventually opened an auto-body repair shop on Long Island. Roman Komisarek left his wife Kathy behind in Poland until he could earn enough to afford an apartment and support her. Komisarek stated that, "At that time, my parents knew they wanted to start a family and give me and my sister a better opportunity. moved to Brooklyn, found a job and didn't know the language at all. He just had the clothes on his back. Now, we have a nice home on Long Island, and my parents provided everything we ever needed. I always carried that with me. I always wanted to make them proud." Komisarek also has a sister named Joanne, who is two years younger than he is. His sister is a graduate of Boston College. He also speaks Polish. Komisarek's mother, Kathy, was diagnosed with pancreatic cancer in January 2005 and died in November 2005. She was 51. In 2014, Komisarek announced that he would be resuming studies at the University of Michigan through the athletic department's Degree Completion Program. On January 9, 2015, Michigan Wolverines head coach Red Berenson announced that Komisarek would join the coaching staff as an undergraduate student assistant.
