Back trouble sends Bruins' Thornton home

Joe Thornton Thornton

BOSTON -- Bruins captain Joe Thornton returned to Boston from the team's road trip to treat his back spasms.

He missed the final five minutes of the Bruins' 4-2 win over Tampa Bay on Monday because of the spasms and is listed as day to day. Thornton has no goals and four assists in four games this season.

The Bruins play Florida on Thursday and Ottawa on Saturday. They end their six-game trip at Montreal on Tuesday.