Mets, Yankees offer emotional tributes 20 years after 9/11 in

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Mike Piazza, Mets honor victims of Sept. 11 attacks

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Yankees, Mets, Navy and Air Force pay tribute on 9/11

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As one unified New York': Mets, Yankees pay tribute on 9/11 20th anniversary

Sept. 11 Attack 20th Anniversary: Live Updates: With Bowed Heads, Americans Reflect on 9/11 and Its Aftermath - The New York Times

New York Yankees, Mets will play on 20th anniversary of September 11