Yo sinks Nats in 12th for Mets' 5th straight win

Cespedes' go-ahead RBI single WASHINGTON -- The Mets made a bit of a statement this weekend at Nationals Park. Even though the Nationals have won the National League East the past two seasons and entered this season as favorites to do so for a third consecutive year, the Mets all but announced they will be legitimate contenders to unseat the Nats this season.

New York completed a three-game sweep over Washington with a 6-5 victory in extra innings. As Sunday night turned into Monday morning, Yoenis Cespedes drove home the game-winning run with an RBI single in the 12th against Brandon Kintzler.

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It's the Mets' first sweep over the Nats since September 7-9, 2015, as New…