Mike Piazza's post-9/11 homer helps NY heal
Mike Piazza suggests 9/11 national remembrance
Remembering 9/11: When the Mets Helped Us Heal - Metsmerized Online
New York Mets set to share 9/11 anniversary with fans, Yankees
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Mike Piazza's post-9/11 homer helps NY heal
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Mike Piazza's post-9/11 home run remains memorable to New York
Mike Piazza's post-9/11 home run remains incredibly memorable
The Homer That Lifted a City - WSJ