14 / 88
A Port Authority of New York and New Jersey police officer holds the American flag during the playing of the national anthem before an NFL football game between the Dallas Cowboys and New York Jets, Sunday, Sept. 11, 2011, in East Rutherford, N.J. (AP Photo/Henny Ray Abrams)

9/11 sports tributes

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