15 Thunderous Clashes: Sport's Most Controversial Moments that Shook the World
The NFL's National Anthem Protests, 2016

In 2016, NFL player Colin Kaepernick began kneeling during the national anthem to protest racial injustice in the U.S. His actions sparked a national debate on free speech, patriotism, and racial inequality, leading to one of the most significant political moments in sports history.