Another football player has joined Colin Kaepernick in protesting racial injustice and police brutality.
Denver Broncos' linebacker Brandon Marshall chose to take a knee during the national anthem before Thursday night's game against the Carolina Panthers.
He said he decided to do so after talking to his family and that he is against social injustice. He went on to say that he is not against the military or America at all but he felt it was the right thing to do.
The Las Vegas native, who played at Cimarron-Memorial High school, played with Kaepernick at University Nevada Reno.
Kaepernick first refused to stand for the anthem during San Francisco's preseason games. He has received both criticism and support since he first chose to kneel during the anthem.
Marshall says taking a knee is a way to create dialogue.
The Broncos have released a statement saying: "We encourage members of our organization to stand during the anthem but understand and respect it being a personal decision."