Can sports get too political? South Africa's first black rugby captain Siya Kolisi, leading the national team to World Cup victory; American footballer Colin Kaepernick, taking a kneel during the national anthem; and Ethiopian runner, Feyisa Lilesa’s protest gesture at the 2016 Olympics -- all examples of what happens when sports and politics collide. But, do athletes, who use their influence to address political, social and cultural issues, really make an impact?