WASHINGTON (AP) Yoenis Cespedes homered and doubled twice, David Wright hit a go-ahead single in the seventh inning and the New York Mets ended Washington's five-game winning streak, beating the Nationals 8-5 Monday to open a key NL East series.

Michael Conforto and Wilmer Flores also homered for New York, which increased its division lead to five games over the Nats with 25 remaining. The teams play twice more in this set.

Dario Alvarez (1-0), pitching in the majors for the first time this season, faced only one batter - Bryce Harper - and struck him out to get his first major league win. Five Mets relievers combined for 5 2-3 scoreless innings, with Jeurys Familia closing for his 37th save.

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Wilson Ramos hit a grand slam for Washington.

Nationals ace Max Scherzer allowed five runs over six innings. Blake Treinen (2-3) took over in the seventh as Washington used four relievers during a three-run burst by the Mets.