Sevyn Streeter's 76ers national anthem performance canceled over 'We Matter' shirt, she says
National anthem singer kneeled in protest during her own performance
Chip Kelly announces Colin Kaepernick is now San Francisco's starting QB
University of Nebraska football player says his team's own fans told him he 'should be lynched' for protesting anthem
Colin Kaepernick receiving death threats: 'You've proved my point'
Philadelphia Eagles players latest to join anthem protest