Dominguez allows game-winning home run in 9th as Orioles lose to Mets, 4-3.

NEW YORK—Seranthony Dominguez had dominated the New York Mets in his years with the Philadelphia Phillies, holding them to an 0.87 ERA in 21 games.

But, in his first game against them with the Orioles, Dominguez (3-3) allowed a game-winning home run to Francisco Alvarez a 3-0 count with one out in the ninth, giving the New York Mets a 4-3 win over the Orioles before 26,874 at Citi Field on Monday night.

The loss dropped the Orioles (73-53) ½ game behind the New York Yankees in the American League East.

Edwin Diaz (4-1) retired all three batters he faced in the ninth for New York (65-60)

Trevor Rogers has yet to win in his four starts since the Orioles traded for him on July 30^th.

He labored through 4 2/3 innings, allowed three runs on five hits, walked three and struck out five.

In his four starts, Rogers has given up 15 runs on 20 hits in 19 innings for a 7.11 ERA.

J.D. Martinez gave the Mets the lead in the first with  a two-run homer.

Tyrone Taylor’s single scored Pete Alonso with the Mets’ third run in the fourth and it came after rightfielder Anthony Santander misplayed a foul ball in the right-field corner.

The Orioles, who had just three hits in a 4-2 win over Boston on Sunday, had just six in seven innings against David Peterson.

Peterson allowed three runs, two earned, struck out eight and got just two fly ball outs. The Orioles’ first run came in the fifth when Ramón Urías doubled, and went to third on Peterson’s throwing error on a pickoff. Urías scored on Jackson Holliday’s grounder to first.

The Orioles tied it in the seventh when Ryan Mountcastle doubled, advanced to third on a grounder to short by Eloy Jiménez and scored on a balk by Peterson. Urías hit his eighth home run to center field to tie it at 3.

Colin Selby, who was recalled from Triple-A Norfolk on Sunday, retired all four batters he faced, striking out three.

Keegan Akin struck out five of six batters in the seventh and eighth.