The United States' Joe Kovacs celebrates winning the gold medal in the men's shot put at the IAAF World Championships in Doha ©Getty Images

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Kovacs had thrown a Championship record to clinch victory ©Getty Images
Kovacs had thrown a Championship record to clinch victory ©Getty Images
Sifan Hassan of The Netherlands completed a unique double by winning the 1,500 metres to add to the 10,000m she had won earlier in the Championships ©Getty Images
Sifan Hassan of The Netherlands completed a unique double by winning the 1,500 metres to add to the 10,000m she had won earlier in the Championships ©Getty Images
A combination of joy and exhaustion overtook Hassan at the end ©Getty Images
A combination of joy and exhaustion overtook Hassan at the end ©Getty Images
Venezuela's Yulimar Rojas celebrates winning the gold medal in the women's triple jump ©Getty Images
Venezuela's Yulimar Rojas celebrates winning the gold medal in the women's triple jump ©Getty Images
Hellen Obiri of Kenya set a Championship record when winning the women's 5,000m ©Getty Images
Hellen Obiri of Kenya set a Championship record when winning the women's 5,000m ©Getty Images
Noah Lyles anchored the US to victory in the men's 4x100m relay ©Getty Images
Noah Lyles anchored the US to victory in the men's 4x100m relay ©Getty Images
It was Lyles' second gold medal of the Championships having earlier won the 200m ©Getty Images
It was Lyles' second gold medal of the Championships having earlier won the 200m ©Getty Images
Shericka Jackson of Jamaica, Daryll Neita of Great Britain and Kiara Parker of the US compete in the women's 4x100m relay ©Getty Images
Shericka Jackson of Jamaica, Daryll Neita of Great Britain and Kiara Parker of the US compete in the women's 4x100m relay ©Getty Images
The women's 4x100m relay teams pose together at the end of their race ©Getty Images
The women's 4x100m relay teams pose together at the end of their race ©Getty Images