The Dallas Cowboys owner Jerry Jones, no stranger to speaking his mind and creating controversy, on Wednesday added fuel to an already confusing and rancorous debate about how the N.F.L. plans to handle players who demonstrate during the playing of the national anthem this season.
At the opening of the Cowboys’ training camp in Oxnard, Calif., Jones said that all his team’s players would be required to stand on the field for the playing of the The Star-Spangled Banner. They would not be able to stay in the team’s locker room, something allowed under the league’s revised policy on the anthem.