American sprinter Sha'Carri Richardson, who will return to action this weekend after a month-long ban, said on Friday that while her positive cannabis test kept her from competing at the Tokyo Olympics she is happy it bought attention to her sport.

Sha'Carri Richardson glad her ban brought attention to sprinting

Caster Semenya has been denied participation in her favoured 800 metres race in Morocco, the athlete said on Thursday, despite Switzerland's highest court rejecting an IAAF request for eligibility regulations to be reimposed on the South African.

Caster Semenya denied entry into Rabat 800 metres race

What effects will IAAF's controversial rule regulating testosterone levels for women athletes have?

At the Prefontaine Classic, he was not at his best as he had three foul throws

Javelin thrower Neeraj Chopra finishes 6th in Eugene leg of Diamond League

Britain's double Olympic champion, Mo Farah, produced a devastating 5,000m display at the Diamond League event in London

Mo Farah in top form ahead of Rio Olympics

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Sha'Carri Richardson glad her ban brought attention to sprinting

Caster Semenya denied entry into Rabat 800 metres race

What effects will IAAF's controversial rule regulating testosterone levels for women athletes have?

Javelin thrower Neeraj Chopra finishes 6th in Eugene leg of Diamond League

Mo Farah in top form ahead of Rio Olympics