Chiasson played in 81 games for Calgary last season, recording 12 goals and 12 assists while averaging less than 14 minutes per game. The offseason losses of Justin Williams, Marcus Johansson and Daniel Winnik have left Washington thin on the wing, so Chiasson will have an opportunity to compete for a spot in the bottom-six forward corps.
Prospects Jakub Vrana and Nathan Walker are considered favorites to make the opening-night roster along with Devante Smith-Pelly, whom Washington signed to a two-way deal in free agency.
Chiasson showed some versatility with the Flames last season, logging minutes on both the power play and the penalty kill. In 320 career NHL games with the Flames, Ottawa Senators and Dallas Stars, he’s scored 50 goals with 56 assists.