Red Sox 4, Mets 3: Passed ball dooms Mets

FORT MYERS, Fla. -- Catching prospect Kevin Plawecki was charged with a passed ball on a pitch from Cory Mazzoni with the bases loaded and one out in the bottom of the ninth as the Boston Red Sox rallied from a three-run deficit to beat the Mets, 4-3, Monday at JetBlue Park. Garin Cecchini -- the brother of Mets 2012 first-round pick Gavin Cecchini -- scampered home from third base with the winning run on Plawecki’s miscue.

Matt Harvey tossed four scoreless innings in his third Grapefruit League start and the Mets built a 3-0 lead. Michael Cuddyer had a leadoff double in the second and John Mayberry Jr. followed with a run-scoring single against Joe Kelly. Anthony Recker added an RBI double. An inning later, Curtis Granderson had an RBI single.

Top prospect Noah Syndergaard tossed a perfect fifth in relief of Harvey, but surrendered two runs in the sixth. Matt Spring led off the inning with a home run on an 0-1 pitch. Mookie Betts followed with a triple. Betts then scored on a wild pitch with Dustin Pedroia batting as Boston pulled within 3-2.

“I felt good,” Syndergaard said. “I went out there the first inning, just locating my fastball, and challenged hitters with my fastball. The second inning, I thought I started the inning off pretty solid. And then the next pitch is going to the Green Monster. I felt like it was a good pitch. It just caught too much plate. And from then I just started falling behind batters. And once you start falling behind batters, you get a little bit more predictable. I left the 2-0 fastball right over the middle to Mookie and he hit it to the deepest part of the ballpark.

“From there on, I felt like I settled down and continued to establish my fastball, and threw my curveball and my changeup in the spots where they needed to be thrown.”

The Red Sox evened the game at 3 in the eighth. Rule 5 pick Sean Gilmartin, auditioning for the primary lefty relief spot now that Josh Edgin will miss the season with Tommy John surgery, surrendered consecutive doubles to the righty-hitting Spring and lefty-hitting Blake Tekotte to open the frame. He allowed one run on three hits while recording two outs.

Buddy Carlyle eventually relieved Gilmartin in the eighth and left the bases loaded, but the Red Sox won it in walk-off fashion in the ninth.

What’s next: The Mets play their final Grapefruit League game before a team day off. Jacob deGrom opposes Miami Marlins left-hander Brad Hand at 1:10 p.m. at Tradition Field on Tuesday (SNY).