Mike Smith stopped 31 shots for his second shutout since returning from injury, Shane Doan and Oliver Ekman-Larsson scored 27 seconds apart early in the third period, and the Arizona Coyotes knocked off the NHL-leading Washington Capitals 3-0 on Saturday night.
Brad Richardson also scored in the third and Max Domi had two assists in teaming with Doan on a dominant night by Arizona's second line.
Doan redirected Domi's shot past Philipp Grubauer for his team-high 27th goal at 5:18. Ekman-Larsson quickly followed with a point shot that deflected off Washington's T.J. Oshie's stick for his team-best 52nd point.
Washington's Alex Ovechkin and Dmitry Orlov each hit the post after that, but Richardson put it away with 6:02 left.
Grubauer made 24 saves filling in for No. 1 goaltender Braden Holtby in the Capitals' second loss in three games since claiming the Presidents' Cup for best record in the NHL.