Robert Gsellman starts as Mets go for doubleheader sweep of Nationals at 6:05 p.m. on SNYThe Mets won game one 5-1 on Saturday afternoon6/19/2021, 9:23 PMAlex SmithEditorial ProducerAug 17, 2020; Miami, Florida, USA; New York Mets relief pitcher Robert Gsellman (65) delivers a pitch in the first inning against the Miami Marlins at Marlins Park. / Jasen Vinlove-USA TODAY Sports