As a roller hockey player, Sweatt has competed internationally with Team USA, winning a gold medal at the 2006 World InLine Championships.

[citation needed] As a youth, he played in the 2002 Quebec International Pee-Wee Hockey Tournament with the Chicago Young Americans team.

He returned to Colorado to complete his NCAA career, which culminated in a college career-high 15 goals, 18 assists, and 33 points over 39 games as a senior in 2009–10.

[3] Moose head coach Claude Noel described Sweatt in his professional rookie season as a physical player who can forecheck quickly and make plays.

[3] Sweatt recorded 46 points (19 goals and 27 assists) over 80 games, ranking second in team-scoring (12 behind winger Sergei Shirokov),[7] as well as ninth among league rookies.

During the Canucks' 2011 training camp, Sweatt was injured during a prospects tournament in Penticton, British Columbia, causing him to miss the team's first two preseason games in September.

Making his NHL debut the following night against the Montreal Canadiens, he registered two shots on goal and one hit in six minutes and eighteen seconds of ice time; Vancouver won the game 4–3.