Chipper Jones recalls: Braves at Mets on Sept. 21, 2001

Viewers guide -- Mike Piazza, Mets help New York heal post-9/11 - ESPN

Memories of first Mets game after 9/11, Mike Piazza's home run

Chipper Jones and Braves Exit With Sweep of Mets - The New York Times

Chipper Jones – Society for American Baseball Research

Cory Aldridge's Reflections As The Youngest Player In The Mets-Braves Game After 9/11

Marcell_Ozuna

Freddie Freeman ready for first World Series appearance

Ultimate Mets Database: Game of September 21, 2001 - Box Score

I wanted the ball I wanted to be a part of it': Islander Jason Marquis played a prominent role on the day baseball returned to NYC after 9/11

In their words: Examining Hall of Famer and Braves icon Chipper Jones - The Athletic

Mike Piazza, with one swing, gave grieving city a moment to rejoice after 9/11 – New York Daily News

Cory Aldridge's Reflections As The Youngest Player In The Mets-Braves Game After 9/11

Chipper Jones - Wikipedia