Wayde van Niekerk, Pierre-Ambroise Bosse win gold at IAAF World Championships

While Wayde van Niekerk won the men's 400m gold at the IAAF World Championships in Athletics, Frenchman Pierre-Ambroise Bosse took the yellow metal in men's 800m. Later, Conselsus Kipruto maintained Kenya's fine record in men's 3000 metres steeplechase, winning from Morocco's Soufiane El bakkali with long-time leader Evan Jager of the United States third. (Video courtesy: Perform)