Harvey’s Strong Start Slips Away in Mets’ Loss

Photo The Mets’ Matt Harvey after giving up a three-run homer to the Marlins’ Justin Bour in the fourth inning at Citi Field on Friday. Credit Kathy Kmonicek/Associated Press In 10 pitches, Matt Harvey electrified the crowd at Citi Field as if it were 2013, zipping 98-mile-an-hour fastballs past overmatched Miami Marlins hitters and reloading as quickly as the catcher could toss the ball back his way. He pitched the first inning like he had a late-night movie to catch. He pitched like he was laughing at those who feared he might have so-called dead arm.

The magnificence of his first inning washed over into his second, then his third, and there was the sort of jittery momentum building that…