Our African proverb of the day:
Quote Message: A male tortoise can only be recognised when it’s thrown into a fire." from A Kuku proverb sent by Mules James Yasona, Kajo-Keji, South Sudan, and Atiya Patrick Kasagara, Gulu, Uganda.
South African 800m Olympic champion Caster Semenya is about to run what could be her last 800m race before new rules restricting testosterone levels come into force. You can follow the action on this BBC Sport live page.
And we leave you with this image from our selection of the best pictures of the week showing a resident of Djenne, Mali, as he helps to render the ancient Grand Mosque with a new coat of mud.