NFL players kneel during anthem at London game

Three Miami Dolphins kneeled during the national anthem in London.

Dolphins receiver Kenny Stills, tight end Julius Thomas and safety Michael Thomas took a knee for the United States national anthem. Afterwards, along with every other player on the team, they stood up for the playing of the United Kingdom national anthem, "God Save the Queen."

Across the field at the game at Wembley Stadium, the entire New Orleans Saints team took a knee for a moment, then rose as a group as "The Star-Spangled Banner" played.

The Saints and Dolphins’ protest took place on the fourth week of the football season, and a day after the president reinforced his stance that NFL players should "stand" while the national anthem is performed.

Later in the day in the U.S., Oakland Raiders star running back Marshawn Lynch arrived at Denver’s Mile High stadium to take on the Broncos in a black T-shirt that read: "EVERYBODY VS. TRUMP."

On Saturday, Trump had tweeted: "Very important that NFL players STAND tomorrow, and always, for the playing of our National Anthem. Respect our Flag and our Country!”

The imbroglio between the NFL and the president began on the evening of Sept. 22, when Trump was in Huntsville, Alabama to stump for GOP senatorial candidate Luther Strange. In his off-the-cuff speech Trump hit any NFL player who decide to take a knee while the national anthem is performed.

"Wouldn't you love to see one of these NFL owners, when somebody disrespects our flag, to say: 'Get that son of a b---- off the field right now, out. He's fired. He's fired," the president said to the crowd.

Trump then attempted to threaten a boycott if players did not standing during the national anthem. The president wrote, "you will see change fast" -- suggesting fans would boycott games.

Since, the fallout by the league has been widespread. Week three of the season saw hundreds of players, coaches, and owners come out for “unity” by kneeling, locking arms in solidarity, or remaining in the locker room during the national anthem.