It seems the Bruins did more than cost Toronto a chance to move in the Eastern Conference playoff picture.

Boston also cost the Maple Leafs their second-leading scorer in addition to a key role player, who will be out for the foreseeable future.

Winger Joffrey Lupul, the Leafs today announced, will miss four to six weeks with a separated shoulder. Lupul was injured on a second-period check by Boston’s David Krejci Tuesday night and did not return to the Bruins’ 5-4 victory. Fellow forward Colby Armstrong, who did not play after a second-period fight with Dennis Seidenberg suffered a broken nose and is day-to-day. Seidenberg busted open Armstrong’s nose during the bout.

Boston is now 5-0-0 vs. Toronto this season. But the latest triumph over their rivals might’ve been the best proof that the Bruins outclass the Leafs phyiscally, and they’re starting to get their mojo back for the stretch run despite the rash of injuries Boston is dealing with.