The Senators bit back at the Bruins Saturday night in the second game of their home and home series, beating the B's 4-3 courtesy of a Bobby Ryan breakway goal in the third.
Daniel Paille, Jarome Iginla and David Warsofsky all scored for the B's, with Warsofsky's scoring his first career NHL goal.
Patrick Wiercoich Cory Conacher and Zack Smith all scored for the Sens, along with Ryan.
The Bruins had a powerplay and the goalie pulled for the last minute-plus of the third, where they peppered the net with plenty of chances, as well as whiffing on a half-dozen one-timers.
But the Sens and goalie Craig Anderson held on and wrapped up the W on home ice.
The Bruins learned earlier in the day that Dennis Seidenberg will miss the remainder of the season after he suffered a torn ACL and MCL in Friday's game, so you can understand the knee-jerk reaction many fans probably had when it was announced that Zdeno Chara was ruled "day-to-day" with an undisclosed injury.
The last thing the Bruins need are more injuries, so monitoring the Chara injury will keep B's fans on their toes in the next few days.
The Bruins are off until New Year's Eve where they'll host the Islanders.