TOPSHOT - A Nike Ad featuring American football quarterback Colin Kaepernick is on diplay September 8, 2018 in New York City. - Nike's new ad campaign featuring Kaepernick, the American football player turned activist against police violence, takes a strong stance on a divisive issue which could score points with millennials but risks alienating conservative customers. The ads prompted immediate calls for Nike boycotts over Kaepernick, who has been castigated by US President Donald Trump and other conservatives over his kneeling protests during the playing of the US national anthem. (Photo by Angela Weiss / AFP)