DOHA - QATAR - 0CT 5: Ludvy Vaillant of France, Dylan Borlee of Belgium, Thapelo Phora of South Africa, Amoj Jacob of India competing in the 4x400m men’s relay heats during day nine of 17th IAAF World Athletics Championships Doha 2019 at Khalifa International Stadium on October 5th, 2019 in Doha, Qatar.