Kaepernick thanks players who knelt during the playing of the US anthem.
US President Donald Trump again goaded the NFL over its handling of controversial national anthem protests.
NFL players union files a grievance over the league’s requirement to stand or wait out.
NFL owners are still debating where they stand collectively on the issue of players refusing to stand individually.
NBC, broadcaster of this year’s Super Bowl, will show any players who kneel during the pre-game national anthem to protest racial inequality.
A meeting between NFL team owners and players representatives ends with no agreement on the thorny issue of protests during the national anthem.