Athletics Usain Bolt

Fireworks for the winner goes off as Jamaica's Usain Bolt falls after suffering an injury, during the men's 4x100-meter final at the World Athletics Championships in London Saturday, Aug. 12, 2017. (AP Photo/Frank Augstein)

Fireworks for the winner goes off as Jamaica's Usain Bolt falls after suffering an injury, during the men's 4x100-meter final at the World Athletics Championships in London Saturday, Aug. 12, 2017. (AP Photo/Frank Augstein)

Source: AP