NFL owners have decided to fine teams if players refuse to stand for the national anthem.<br /> The new policy announced on Wednesday came after President Trump lashed out at NFL players who protested against racial injustice by kneeling during pre-match ceremonies. <br />The movement began two years ago when San Francisco 49ers quarterback Colin Kaepernick kneeled in protest against police shootings of unarmed black men. <br /> Players, however, will be allowed to stay in the locker room during the "The Star-Spangled Banner" if they refuse to comply with the new policy.<br /> The NFL Players Association criticized the move, saying it wasn't consulted and would challenge any changes that violate the collective bargaining agreement. <br />