NBA Players Kneel During National Anthem on Anniversary of September 11 Attacks

Los Angeles Clippers players and staff kneel during the national anthem before their game against the Denver Nuggets at the ESPN Wide World Of Sports Complex in Lake Buena Vista, Fla., on Sept. 11, 2020. Michael Reaves/Getty Images

Players on four NBA teams knelt during the national anthem on Friday despite it being the anniversary of the Sept. 11, 2001, terror attacks.

The Los Angeles Clippers game against the Denver Nuggets was followed by the Boston Celtics-Toronto Raptors match.