(CNN) Carolina Panthers quarterback Cam Newton raised his fist in a black-power salute after scoring a touchdown. Pittsburgh Steeler Alejandro Villanueva was joined on the field by his teammates this time. And many San Francisco 49ers knelt during the National Anthem, although some put their hands over their hearts. For the second consecutive Sunday, NFL players around the country and in London demonstrated in a variety of ways in response to President Trump's call for NFL owners to fire any "son of a bitch" who "disrespects our flag." Former NFL quarterback Colin Kaepernick pioneered the protests last year when he took a knee during the anthem over what he said was social and racial injustice.Oakland Raiders running back Marshawn Lynch wears an "EVERYBODY VS. TRUMP' T-shirt before taking the fieldNearly half of the San Francisco 49ers kneel during the National Anthem
Last week, while the rest of his teammates remained in the locker room during the anthem, _ stood in the tunnel alone with his hand over his heart.