Athletics South Africa

2016 Olympic champion Wayde Van Niekerk will not run the 400 metres in Paris, opting instead to focus on helping South Africa win a medal in the relays

The 37-year-old will be under “correctional supervision” for the remainder of his 13-year murder sentence and will undergo therapy

This is Carina Horn’s second doping offense in the last four years, and she is now ineligible to compete until 2029