Wayde van Niekerk is halfway to an historic double at the world championships. His biggest rival this season wasn’t even allowed in the stadium for Tuesday’s 400m final.
Van Niekerk, who broke Michael Johnson‘s 400m world record in Rio, repeated as world champion in 43.98 seconds.
Meanwhile, Botswanan Isaac Makwala was held out of the final due to what the IAAF said was “an infectious disease” but insisted that he was not sick and had never seen a doctor. Makwala ranks No. 2 in the world this year in the 200m and No.