Santa Clara, USA. 02nd Oct, 2016. Eli Harold (58), Colin Kaepernick (7) and Eric Reid (35) of the San Franciso 49ers kneel during the national anthem before a game against the Dallas Cowbows on October 2, 2016, at Levi’s Stadium, in Santa Clara, CA Credit

Santa Clara, USA. 02nd Oct, 2016. Eli Harold (58), Colin Kaepernick (7) and Eric Reid (35) of the San Franciso 49ers kneel during the national anthem before a game against the Dallas Cowbows on October 2, 2016, at Levi’s Stadium, in Santa Clara, CA Credit

Colin Kaepernick (7) and other members of the San Francisco 49ers kneel during the national anthem before a game in 2016.

Nhat V. Meyer/Bay Area News Group/TNS/McClatchy-Tribune/Tribune Content Agency LLC/Alamy Stock Photo