deGrom had surrendered just two hits before giving up Andrelton Simmons' leadoff double and Pedro Ciriaco's one-out infield single in the eighth. With runners at the corners, the Mets pulled their prized right-hander in favor of former Braves farmhand Sean Gilmartin, who promptly allowed Peterson to drill his game-winner over Juan Lagares' head in center field.
Wisler proved why he has been considered one of the game's best pitching prospects. The 22-year-old right-hander, who was acquired in the April trade that sent Craig Kimbrel to the Padres, allowed one run and six hits over eight innings.