American football player Colin Kaepernick says he has received death threats over his refusal to stand for the national anthem, in protest against the plight of black people in the US.The San Francisco 49ers quarterback has silently boycotted The Star-Spangled Banner in games, sitting or kneeling.
The threats came from different avenues, he added.
He said the killing of Terence Crutcher by police in Tulsa was a "perfect example of what this is about".
Video showed the 40-year-old had his hands in the air when he was shot next to his car during a police operation on Friday.
"It will be very telling about what happens to the officer that killed him. They shot and killed a man and walked around like it wasn't a human being," the player told journalists.
Death threatsWhen asked about the possibility of the threats being acted upon, he said: "If something like that were to happen, you've proved my point.
"It'll be loud and clear why it happened."
Kaepernick's protest has stemmed from the racial tensions that increased across the nation this year amid a string of police killings and subsequent revenge attacks.
It has drawn strong reactions both in opposition and support.
"I knew there were other things that came along with this when I first stood up and spoke about it. It's not something I haven't thought about," he said.
Meanwhile, he said he would donate $1m (£770,000) to local communities over the next 10 months.