FILE - In this Sept. 1, 2016 file photo, San Francisco 49ers quarterback Colin Kaepernick, center, sits during the national anthem before an NFL preseason football game against the San Diego Chargers in San Diego. The anthem is played before the start of every U.S. major sporting event, where fans and players are expected to salute the flag by placing a hand over the heart while singing along. Not doing so is considered unpatriotic by some. The anthem has also been used by athletes as a way to protest. Kaepernick recently refused to stand when the anthem was played during NFL games, citing police brutality against black people and other forms of racial injustice. (AP Photo/Chris Carlson, File)
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