Author: Ben Morse, for CNN

WADA recommends four-year ban of Russia

Russia's ability to host Euro 2020 football matches and its participation in the 2022 FIFA World Cup and the 2020 Olympics could be under threat after the World Anti-Doping Agency (WADA) recommended a four-year ban for non-compliance in doping investigations.

Each year, 13 boxers on average die in the ring

It's a sport which can be a matter of life and death. Between 1890 and 2011, it's estimated that 1,604 boxers died as a direct result of injuries sustained in the ring, according to a survey carried out Manuel Velazquez. That is an average of 13 deaths a year.