Nicklas Backstrom tied it at 2 with his 10th goal on a power play 9:45 into the third. He earned his 19th assist on Ovechkin’s spectacular go-ahead goal, his ninth at 13:50.
Troy Brouwer scored 15 seconds later to make it a 4-2. John Carlson, who had two assists, scored into an empty net at 19:14 for his third point.
FLYERS 5, SABRES 4 (OT)
In Bufflao, N.Y., Claude Giroux scored 2:27 into overtime for Philadelphia, which overcame a three-goal, first-period deficit and beat Buffalo.
The Flyers (16-7-3) scored four times on 10 shots bridging the first and second periods.
PENGUINS: Sidney Crosby will miss the next two games as a precaution after a collision with teammate Chris Kunitz in Monday night’s loss to Boston.