Jerry Jones said Monday night that the Dallas Cowboys' policy that prohibits players from playing if they "disrespect" the flag is not new and has been in effect since last season, when players around the league started to kneel during the national anthem.

Jones first addressed the policy after Sunday's game against the Green Bay Packers. The owner was asked about Vice President Mike Pence leaving a game in Indianapolis earlier in the day when San Francisco 49ers players took a knee.

"If there's anything that is disrespectful to the flag, then we will not play," Jones said. "Understand? We will not ... if we are disrespecting the flag, then we will not play. Period."

Jones clarified Monday night that not standing at attention during the anthem is what he considers disrespectful and unacceptable.