Japan’s Kota Wakabayashi (left) races after receiving the button from Kentaro Sato (right) in the heat of the Men’s 4x400m Relay at the IAAF World Relays in Yokohama, Japan on Saturday.
Japan's Kota Wakabayashi (left) races after receiving the button from Kentaro Sato (right) in the heat of the Men's 4x400m Relay at the IAAF World Relays in Yokohama, Japan on Saturday.