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Roger S. Goodell, Commissioner of the National Football League, left, chats Woody Johnson, owner of the New York Jets, before an NFL football game between the Dallas Cowboys and New York Jets, Sunday, Sept. 11, 2011, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Roger S. Goodell, Commissioner of the National Football League, left, chats Woody Johnson, owner of the New York Jets, before an NFL football game between the Dallas Cowboys and New York Jets, Sunday, Sept. 11, 2011, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

9/11 sports tributes

The sports world paid tribute to the 10th anniversary of the 9/11 attacks.