Mets to wear regular uniform hats for Sept. 11 game

Yankees and Mets Clash in Subway Series on 9/11 Anniversary - The New York Times

Mets Yankees first responder caps September 11

Jacob deGrom #48 - Autographed Team Issued First Responder Hat and Team Issued White Commemorative Jersey with American Flag Patch - Mets vs. Yankees - 9/11/2021

Mets' Buck Showalter named NL Manager of the Year

New York Mets to pay Robinson Canó six figures to beat them

Mets Miracle Helped Heal All Of America After 9/11

NY Mets to honor 9/11 responders during batting practice and national anthem Tuesday – New York Daily News

MLB Players to Wear Ribbons on Caps for 9-11 – SportsLogos.Net News

NFL season opens with Sept. 11 tributes

Major League Baseball bans New York Mets from wearing FDNY, NYPD hats honoring Sept. 11 heroes

20 years later: Ex-Braves reflect on first game in New York after 9/11