FILE - In this Aug. 8, 2016, file photo, Tennessee Titans wide receiver Rishard Matthews, center, and teammates listen to the national anthem before a scrimmage at NFL football training camp in Nashville, Tenn. Matthews spoke Friday, Oct. 13, 2017, and said he made a bad decision to tweet out that he would quit playing football if the NFL puts in a new rule on the national anthem. He quickly deleted the tweet, which someone caught via screen grabs.(AP Photo/Mark Zaleski, File)
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