Joe Sacco’s time with the Bruins officially came to an end on Thursday when he joined the New York Rangers as an assistant after Boston announced it hired Marco Sturm as its next coach.

The Bruins picked the 46-year-old German to replace interim coach Joe Sacco, who took over from Jim Montgomery in November and led the team to a 25-30-7 record — much of it after a trade ...

The Bruins picked the 46-year-old German to replace interim coach Joe Sacco, who took over from Jim Montgomery in November and led the team to a 25-30-7 record — much of it after a trade ...