South Africa’s Wayde Van Niekerk celebrates after winning the gold medal in the men’s 400-meter final during the World Athletics Championships in London Tuesday.

South Africa's Wayde Van Niekerk celebrates after winning the gold medal in the men's 400-meter final during the World Athletics Championships in London Tuesday.
South Africa's Wayde Van Niekerk celebrates after winning the gold medal in the men's 400-meter final during the World Athletics Championships in London Tuesday.
block
block