Plans to mark 20th anniversary of 9/11 attacks begin to take shape
AP source: Mets to host Yankees on 20th anniversary of 9/11
Mets, Yankees, MLB to Mark 9/11 20th Anniversary with On-Uniform
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Mets to host Yankees on 20th anniversary of 9/11
How baseball helped New York heal after 9/11
NFL to recognize 9/11 20th anniversary during Week 1 games
Larger than life: Mets unveil Seaver statue at Citi Field
Mets-Yankees hold 9/11 ceremony honoring first responders
Major League Baseball releases 2021 schedule early - The Boston Globe
Sept. 11 Attack 20th Anniversary: Live Updates: With Bowed Heads