Wada report into Rio anti-doping criticises 'serious failings'

A damning report has criticised "serious failings" in the anti-doping operation at the Rio 2016 Olympics.

The 55-page World Anti-Doping Agency (Wada) Independent Observers report accused the management team in the Rio 2016 anti-doping department of "a lack of coordination", which it said contributed to putting an almost unmanageable strain on attempts to carry out drug tests.