DALLAS -- Erik Karlsson scored on a breakaway with 2:19 left in overtime and Ottawa Senators beat the Dallas Stars 3-2 on Monday night.
Karlsson picked up a loose puck after a missed Dallas opportunity and beat goalie Kari Lehtonen.
Stars goalie Ben Bishop left because of a lower-body injury after making 12 saves in the first period. Lehtonen replaced Bishop and had 15 saves.
Ottawa's Craig Anderson made 31 saves.
Dallas' Tyler Seguin scored twice, on the power play in the first period and from the top of the right faceoff circle with 1:02 left in the third period to tie it.