The Boston Bruins have fired Head Coach Claude Julien, replacing him with Assistant Coach Bruce Cassidy on an interim basis.
Julien, who has one-year left on his contract beyond this season, was in his 10th season with the Bruins, having been named the 27th head coach in team history on June 21, 2007.
He was the longest tenured active head coach in the NHL. That accolade now belongs to Joel Quenneville, head coach of the Chicago Blackhawks.
Julien is Boston's all-time coaching wins leader, compiling a 419-246-94 record and .614 winning percentage in 759 games with the club.
He led the Bruins to a Stanley Cup championship in 2011, and back to the Stanley Cup Final in 2013. The Bruins made the playoffs in seven of Julien's nine years behind the bench.
Julien also won the Jack Adams Trophy as the league's best coach in 2009.
Cassidy is in his first season as an assistant coach with Boston. He completed his fifth season as head coach of the Providence Bruins in 2015-16, having spent the three previous seasons (2008-11) with the club as an assistant.
This will be Cassidy's second career stint as an NHL head coach, having previously served as head coach of the Washington Capitals from 2002-04, where he helped lead the Caps to a 39-29-8-6 record.