Diana Matheson

Born in Mississauga, Ontario, Matheson attended White Oaks Secondary School in Oakville, Ontario, where she received Principal's Award for athletics and academics. As a member of the Ontario provincial team from 1999 to 2002, she won the national championship in 2001 and was runner-up in 2002. She was captain of the team in 2002. Playing for the Oakville Women's team, Matheson was a 2002 Ontario Cup champion and club national women's champion.

As a regular player for Canada, Matheson is remarkable for possessing the speed and skill to hold her place in an international team that is known for its physical approach to the game, despite having a height of only 5 ft 0¼. Matheson made her national team debut at the Algarve Cup in March 2003. Matheson participated in the 2007 Women's World Cup, she appeared in all three of Canada's group stage matches, they finished third in their group and did not advance to the knockout round. In 2008, Matheson was named to her first Olympic Team, she appeared in all four matches for Canada as they were eliminated in the quarterfinals by the United States.

As a freshman in 2004, Matheson was a unanimous first-team All-Ivy selection and was named Ivy League Rookie of the Year. She earned first-team All-America and first-team All-Mid-Atlantic Region honours and was one of 12 finalists for SoccerBuzz Freshman of the Year. She was a three-time Ivy Rookie of the Week. During her sophomore year, she scored five goals, second-most on the team, and had a team-high of seven assists (ranked third in the Ivy League). She was one of only two unanimous first-team All-Ivy selections. Matheson earned SoccerBuzz first-team all-region and NSCAA second-team all-region honours. After missing the season-opening trip to Florida to play with the Canadian national team, she started all 14 games the rest of the season. As a junior in 2006, Matheson co-captained the squad and led the Tigers with eight goals and five assists for 21 points despite missing five games to train with the Canadian national team. She was a unanimous selection for first-team All-Ivy. As a senior, Matheson missed the first seven games to play in the 2007 FIFA Women's World Cup in China. After returning from the tournament, she earned a point in seven straight games of the 10 played and broke Princeton's single-game and career assist records with a four-assist performance against Rutgers. Serving as co-captain of the team, she was Princeton's third four-time first-team all-league honoree and seventh Player of the Year.

Matheson majored in economics at Princeton University in Princeton, New Jersey, and was voted Ivy League Player of the Year in 2007 and Princeton Women's Athlete of the Year in 2008.

Matheson played in her second consecutive World Cup in 2011, Canada once again did not advance past the group stage. At the 2011 Pan American Games, Matheson helped Canada win the gold medal against the defending champions Brazil. The gold medal match was tied 1–1 after extra time and went to penalties. Matheson was the first player to take a penalty for Canada and scored, Canada defeated Brazil 4–3 on penalties to win their first ever Pan American Games gold medal.

Matheson was once again named to Canada's Olympic squad in 2012, where she played every minute of Canada's six matches. After Canada defeated the host team Great Britain in the quarterfinals, they suffered a last minute loss in extra time to the United States in the semifinals. In the bronze medal match against France, Matheson scored the game winning goal in the 92nd minute to defeat France 1–0, and secure Canada's first ever medal in women's soccer at the Olympic Games.

In early 2013, it was announced that Matheson would be joining the Washington Spirit as part of the NWSL Player Allocation, a team in the newly founded National Women's Soccer League. She made her debut during the Spirit's inaugural match on April 15, 2013 against the Boston Breakers. Her first NWSL goal came on a late penalty in the club's home opener against the Western New York Flash on April 20, 2013. At the conclusion of the 2013 season, it was announced that Matheson had been selected as a midfielder to the NWSL 2013 Best XI First Team.

Matheson helped lead the Spirit to its first ever playoff berth in 2014 with eight goals and six assists during the regular season.

In October 2014, Matheson suffered a torn ACL in a friendly match against Japan. This injury put her participation in the 2015 World Cup, which was being held in Canada, in doubt. Matheson recovered in time to be named to Canada's squad for the World Cup. She was only fit enough to make one substitute appearance for Canada, she played the final 28 minutes in their quarterfinal loss to England.

After joining the team late in 2015 due to injury and participating in the 2015 FIFA Women's World Cup, Matheson scored three goals and had two assists in just nine games.

In 2016, she scored four goals, tied for second most on the team. Matheson currently holds the records for most goals scored (23) and most assists (12) for the Spirit all-time. In 2016 the Washington Spirit advanced to the NWSL Championship game against the Western New York Flash. After extra time the game was tied 2–2 and advanced to penalties. Matheson was the fifth penalty taker for the Spirit, Washington was trailing 2–3 and needed to score to keep the match going. Her penalty was saved by Sabrina D'Angelo, securing the win for the Flash.

Matheson was named to her third Olympic team in 2016, where Canada won the bronze medal for the second consecutive Olympics. Matheson earned her 200th cap for Canada on October 14, 2018, 181 of those caps were starts.

During the off-season, the Washington Spirit traded many of their veteran players. In January 2017, Matheson was traded to the Seattle Reign in exchange for Arielle Ship and Seattle's third round pick in the 2018 NWSL College Draft.

Matheson appeared in 21 matches for Utah in 2018, she scored 2 goals. She returned to Utah for the 2019 season however she suffered a foot injury with the Canadian National team that would require surgery forcing her to miss the 2019 season.

In May 2019, Canada Soccer announced that Matheson had been ruled out of the 2019 World Cup due to a foot injury that would require surgery.