Jeff McNeil, arms clasped behind his back, tossed his bat and shouted toward the New York Mets dugout, starting up the first base line as his go-ahead, two-run homer in the seventh inning off Luke Weaver sailed into the second deck at Citi Field.

The Mets won three straight for the first time since June 12. The Yankees have lost five straight and 14 of their last 20.

NEW YORK — Jeff McNeil hit a go-ahead, two-run homer off Luke Weaver in the seventh inning, leading the New York Mets over the Yankees 6-5 on Friday in a Subway Series opener between teams that faded badly after strong starts.