Turns out the man who gave the Yankees a thumbs-down at Citi Field

For those wondering, here's the deal with the 'Thumbs Down' Yankees celebration

New York Yankees, Mets: 2018 Subway Series Preview

Mets fan holds up thumbs up sign after Francisco Lindor walks back to the dugout after flying out. : r/baseball

Gary Dunaier (Thumbs Down Guy) (@GaryDunaier) / X

Yankees Fans Enjoy $25 Tickets and an Easy Victory - The New York Times

Yankees Potential Free Agent Target: Todd Frazier - Pinstripe Alley

Meet Thumbs Down Guy, a Yankees hater

Báez, Lindor apologize for thumbs-down jab at Mets fans - NBC Sports

Pirates' Henry Davis back from right thumb injury, activated from IL

Why Mets Players Are Giving the Thumbs Down to Their Fans

DiComo] Adding insult to tonight's proceedings: the Citi Field video board briefly just shut off during an at-bat, causing a momentary stoppage in play. When it turned back on, it displayed a