points in 14 games, advancing to the Western Conference Finals. His efforts during the OHL season helped him make the OHL second All-Star team, the OHL first All-Rookie team, and the Canadian Hockey League (CHL) All-Rookie team. Professional Washington Capitals Carlson made his professional debut for the Capitals' American Hockey League (AHL) affiliate, the Hershey Bears, on May 2, 2009, in a Calder Cup playoff game against the Wilkes-Barre/Scranton Penguins. The following night, he scored his first professional goal in Game 2 of the series. Carlson played a total of 16 games for the Bears that postseason, helping them become the 2009 Calder Cup Champions. Carlson made his NHL debut for the Capitals on November 21, 2009, against the Toronto Maple Leafs. On January 21, 2010, Carlson was recalled by the Capitals. On March 25, 2010, Carlson scored his first NHL goal, against Manny Legace of the Carolina Hurricanes. In Game 2 of the Capitals' 2010 Stanley Cup playoff first-round series against the Montreal Canadiens, Carlson scored his first NHL playoff goal, tying the game with just over one minute to play in regulation. After the Capitals' elimination in the playoffs, Carlson rejoined the Hershey Bears in their playoff campaign and scored the game- and Calder Cup-winning goal in Game 6 of the Calder Cup Final against the Texas Stars. On September 14, 2012, Carlson signed a six-year, $23.8 million contract extension with the Capitals. Carlson's 2015–16 season was interrupted by an injury that limited to him playing just 56 regular season games, ending his streak of playing in all 82 regular season games every season for the Capitals from the 2010–11 season to the 2014–15 season. Carlson was injured in late December 2015, and his injury emerged again throughout the second half of the 2015–16 season. Despite the injury, Carlson scored 39 points by the end of the regular season. During the 2017–18 season, the last year of his contract, Carlson had a career year, putting up career numbers in goals and assists. He played in all 82 games during regular season, and his success helped push the Capitals to the 2018 playoffs. At the conclusion of the regular season, Carlson led NHL defensemen in points with 68 and became the first Capitals defenseman since Mike Green in the 2009–10 season to score 60 points in a season. Carlson's 2017-18 campaign ended with a Stanley Cup victory and a