Mets announce ceremony details for 20th anniversary of 9/11

Yankees-Mets 9/11 ceremony to feature Joe Torre, Bobby Valentine, Mike Piazza; Giants, Jets to honor 20th anniversary of terrorist attacks

Rivals stand together to commemorate 9/11

Mets announce ceremony details for 20th anniversary of 9/11

MLB, clubs to observe September 11 remembrance

Mets, Yankees, MLB to Mark 9/11 20th Anniversary with On-Uniform Tributes – SportsLogos.Net News

Remembering 9/11, 21 years later: What to know about Lower Manhattan's tribute to terror attack victims

Mets, Yankees come together to commemorate 9/11 anniversary - Newsday

40) Former Yankees and Mets managers describe how baseball helped nation heal after 9/11

Here is the list of NYC events honoring 9/11 20th anniversary

PHOTOS: Yankees, Mets honor 20th anniversary of 9/11 with emotional ceremony at Citi Field

Plans to mark 20th anniversary of 9/11 attacks begin to take shape in NYC