Every team goes through it every couple of years and this year it looks like the Boston Bruins turn. 

The team has been hit with a slew of injuries and they just got hit with another huge one. 

According to TSN's Darren Dreger, Bruins forward Patrice Bergeron will miss "an extended period of time" at least four weeks. 

Dreger adds that it looks like it's shoulder related. 

We should have more details later on today. 

Source: Darren Dreger