American Cooper Lutkenhaus produces a stunning performance to beat Olympic champion Emmanuel Wanyonyi in the men's 800m at the Diamond League meeting in Oslo, but fellow teenager Gout Gout struggles in the 200m.
Teenager Lutkenhaus stuns Olympic champion Wanyonyi in 800m American teenager Cooper Lutkenhaus produced a stunning performance to hold off Olympic champion Emmanuel Wanyonyi in the men's 800m at the