Men's 400m Sprint Final | Rio 2016 Replays
South Africa's Wade Van Niekerk sets a new world record and wins gold in the men's 400m sprint.
द्वारा प्रस्तुत
Men's 400m Sprint Final | Rio 2016 Replays
South Africa's Wade Van Niekerk sets a new world record and wins gold in the men's 400m sprint.
