Jared Cowen scored 45 seconds into overtime, giving the Ottawa Senators a 3-2 victory over the Buffalo Sabres on Tuesday night.
Cowen pinched into the slot and redirected a pass from Erik Karlsson in the right corner.
Milan Michalek and Peter Regin also scored for Ottawa, which came back after trailing 2-1 in the first period. Michalek, who leads the NHL with 19 goals, left the game with 5 1/2 minutes remaining in the second period after colliding with Karlsson.
Craig Anderson stopped 27 shots.
Ryan Miller made a season-high 41 saves for the Sabres, who dropped to 2-5-3 in their last 10 home games. Paul Szczechura and Tyler Ennis scored for Buffalo.
Buffalo had its six-game winning streak against Ottawa snapped. The Sabres are 8-1-1 in the last 10 games of the Northeast Division rivalry.
Regin's goal tied the game 7 1/2 minutes into the third period, when his point shot got through a screen in front of Miller.
Buffalo got off to yet another slow start as Michalek scored just ...