Horton is in his first career postseason after spending his first six seasons with the woeful Florida Panthers. The former No. 3 overall draft pick has 168 goals and 180 assists in 502 games.
Horton was Boston’s second-leading goal-scorer this season with 26, finishing fourth on the team with 53 points.
Vancouver already lost defenseman Dan Hamhuis to an undisclosed injury in Game 1 of the finals, but the Canucks are deep on defense, with veteran Keith Ballard sitting out the first three games as a healthy scratch.