Last Friday, the Mets had auctioned off the 9/11 jerseys they wore

Jeremy Accardo #49 - Game Used White Commemorative Jersey with American Flag Patch - Mets vs. Yankees - 9/11/2021

Mike Piazza 'very disappointed' Mets sold post-9/11 HR jersey that is up for auction

Mike Piazza upset over auction of jersey he wore after 9/11 - Sports Illustrated

JEFF KENT 1996 NEW YORK METS GAME WORN ROAD JERSEY

Chris Bassitt #40 - Game Used White Pinstripe Jersey - Mets vs. Padres - 7/23/22 - 7 IP, 2 ER, 11 K's, Career High in Strikeouts - Also Worn 5/2/2022 - 7 IP, 3 ER, 8 K's

J.C. Martin #9 - White Pinstripe Jersey - 50th Anniversary of the 1969 Mets - Worn On-Field during the Pre-Game Ceremony - 6/29/2019

Mets will wear special uniforms to mark 9/11 anniversary

Lot Detail - 2001 Mike Piazza Game Used New York Mets Alternate Black 9/11 Jersey

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