Colin Kaepernick's kneeling protest during the national anthem in 2016 has influenced social protest in sports around the world. Kaepernick's protest brought attention to social and racial injustice issues. Other countries have since adopted similar kneeling protests during their national anthems. However, NFL protests have also been costly, with some pointing to the protests as a reason for declines in NFL viewership and wing sales. Research sources are provided on Kaepernick's influence, other countries adopting kneeling protests, and the financial costs of NFL protests.