Brief profile of five male athletes to watch out for at the August 22-30 world championships in Beijing.
A round-up of all the results from the 16th World Athletic Championships in London
Here are some reactions from the world of sport on of widespread state-sponsored doping by Russian athletes at the 2014 Sochi Olympics.
In Rio, over 10,000 athletes will compete for the biggest prize in sport -- an Olympic gold medal.