As a result, they chose to implement the rules saying that everyone needs to stand and show respect for the flag and the anthem.
Trump, in a taped interview with "Fox and Friends" that aired Thursday morning, also used the appearance to continue pressing Congress to fully fund his proposed southern border wall and to take jabs at former FBI Director James Comey.
The move to mandate that players stand came after Trump repeatedly criticized athletes protesting issues including police brutality by kneeling during the national anthem.
"You have to stand proudly for the national anthem or you shouldn't be playing, you shouldn't be there, maybe you shouldn't be in the country", Trump continued, adding that the NFL owners "did the right thing". Teams can be subject to fines if players do not follow the policy. "Or you shouldn't be playing, you shouldn't be there, maybe you shouldn't be in the country".
It wouldn't be wise to neglect anything that POTUS says, so the league and team owners made a decision to react as they are quite scared of what Mr. Trump could do. "I brought it out". This especially is the case if that man is Donald Trump, even that he hasn't been in the office for a long time, he is already known for his, sometimes hard to understand, behavior.
Trump's appearance with "Fox and Friends" co-host Brian Kilmeade was his second interview with the show in a month. That's not going to play well in the locker rooms of the league, and not among a sizable contingent of the stands, either.
Israel hits Hamas base
Gaza protesters have hurled flaming tires, firebombs and stones toward Israeli troops, and tried to attack the border fence. On Tuesday, Israel's military allowed eight trucks full of humanitarian aid and medical supplies to enter the Gaza Strip.
New York Jets chairman Christopher Johnson told Newsday that he voted for the new policy because "I felt I had to support it from a membership standpoint". "I never want to put restrictions on the speech of our players".
Philadelphia Eagles defensive end Chris Long, who donated his base salary previous year to various educational charities, ripped the announcement on Twitter.
In an interview on 710 ESPN Seattle on the Bob Groz and Tom show, receiver Doug Baldwin said he was not surprised but that "I'm disappointed" in the ruling saying "the National Football League cares about one thing, and that's the National Football League, that's the NFL's bottom line".
The president also defended his decision to fire Comey last May, calling him a "rotten apple". "This is not patriotism".
Supporters said it was a peaceful but effective protest, while others accused the kneelers of being unpatriotic. I'm someone who's always looked at the anthem as a declaration of ideals, including the right to peaceful protest.