President Donald Trump used Twitter to share his support of Dallas Cowboys owner Jerry Jones' player-will-stand position.
"Way to go Jerry," Trump wrote on Twitter on Friday.
"This is what the league should do!"
Jones said at his training camp kickoff press conference that he isn't waiting for the NFL and its players association to come to an agreement on a policy regarding whether players must stand at attention during the national anthem.
"Our policy is you stand during the anthem, toe on the line," Jones said Wednesday.
Jones said the Cowboys also will not tolerate players remaining in the locker room during the anthem instead of standing on the field.
NFL owners agreed to a policy in May, mandating players not planning to stand for the anthem needed to stay in the locker room until just before the game or face fine or suspension.
The NFL rescinded that policy last week after the players union filed a grievance and said it could take legal action. The two sides are in negotiations.
Backlash spiked again this week when the Miami Dolphins sent a memo about their intention to fine or suspend players who kneel during the national anthem.
Owner Stephen Ross said the policy was merely a placeholder until the NFL established its overall position and fine schedule.
The issue about players standing for the national anthem arose during the 2016 preseason, when former San Francisco quarterback Colin Kaepernick first sat, then took a knee, during the anthem to protest what he viewed as racial inequality and police brutality.
Since then, a number of NFL players have joined in the protest.
The issue has escalated, in part, because of Trump's vocal opposition of players who protest during the anthem.
In the past, he's called via Twitter for players to be forced to sit out the game if they fail to stand for the anthem.
If they do it a second time, players should be suspended without pay for the season, Trump wrote.
