Dion Phaneuf was born April 10, 1985 in Edmonton, Alberta. The first round, 9th overall selection of the Calgary Flames in the 2003 NHL Entry Draft, Phaneuf is a graduate of the WHL's Red Deer Rebels.
An offensive and punishing defenseman, Phaneuf played four seasons in the WHL with Red Deer earning numerous honours including WHL Defenseman of the Year in both 2004 and 2005. Throughout his WHL career, Phaneuf registered 146 points (64-82-146) and over 500 penalty minutes, before making his NHL debut with the Flames during the 2005-06 season. A finalist for the Calder Trophy as the league's top rookie, Phaneuf finished the season with 49 points (20-29-49)
Phaneuf's second year in the league saw the bone-crushing defenseman tally 50 points and earn a spot on the Western Conference All-Star team. During his 2007-08 season he once again led all Flames defensemen in scoring and was tied for second in the league in goals with.
On January 31, 2010, the bruising defender was shipped to Toronto as part of a seven player blockbuster trade that saw Calgary acquire Niklas Hagman, Ian White, Matt Stajan and Jamal Mayers.
Phaneuf made an immediate impact with the Maple Leafs, providing leadership both in the dressing room and on the ice. Just nine games into his Maple Leafs career he was named alternate captain when teammate Mike Komisarek went down with a season ending injury,
On June 14, 2010, after playing just 26 games for the Leafs, Phaneuf was named the 18th captain in club history. Limited to just 66 games the following season due to injury, Phaneuf's goal total dipped to just eight. He would rebound the following season scoring 12 times and adding 32 assists. His strong play was rewarded at the midseason point when he was named to the Eastern Conference All-Star team.
On February 9, 2016, Phaneuf's time in Toronto would come to an end. The Maple Leafs stunned many, trading their captain to the rival Ottawa Senators in exchange for Jared Cowen, Colin Greening, Milan Michalek, Tobias Lindberg and a second round draft pick.
On the international stage, Phaneuf is a two-time member of Canada's World Junior team, capturing silver in 2004 and gold in 2005. He also won gold at the 2007 World Championships and appeared at the 2011 and 2012 World Championships.