Rask agreed to terms on a one-year, $3.5 million contract with the Bruins on Thursday, according to Pierre LeBrun of ESPN.com.
The Bruins had a bit of a gap open up in goal over the course of the offseason, as last year's starter Tim Thomas indicated he will sit out the 2012-13 season. Without Thomas, the onus in net for the B's would fall on Rask's shoulders, as he's been seen as the heir apparent in net for quite some time.
Rask, who was a restricted free agent before agreeing to the deal on Thursday, will remain as a restricted free agent in the summer of 2013 as long as the terms in the new collective bargaining agreement remain the same.
In the 2011-12 season, Rask started 22 game for the Bruins primarily serving as a backup to Thomas. Rask was 11-8 with a 2.05 goals-against average (GAA) and a .929 save percentage.