Yankees honor 9/11 with hats, 09/11/2020
NY Mets to wear first responder caps during a game on 9/11
Mets, Yankees, MLB to Mark 9/11 20th Anniversary with On-Uniform Tributes – SportsLogos.Net News
9/11 victims honored 20 years later at Angels' Circle on Staten Island
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Pregame ceremonies commemorating 9/11 were held at Citi Field before tonight's Subway Series matchup
Yankee Stadium (1923) - Wikipedia
Mike Piazza suggests 9/11 national remembrance
Danny Vietti on X: Appears the Yankees will be sporting these FDNY hats tonight in honor of 9/11. / X
Men's New York Yankees New Era Navy 9/11 Memorial Side Patch 59FIFTY Fitted Hat
9/11: Yankees, Mets toe line together as one unified New York - Sports Illustrated
How the Mets honored 9/11 heroes amid the coronavirus pandemic