An investigation commissioned by the World Anti-Doping Agency says, Russia operated a state-sponsored doping programme at the Sochi Winter Olympics in 2014. A new report claims Russia's Sports Ministry directed, controlled and oversaw the manipulation of urine samples provided by its athletes. An independent commission set up by the World Anti-Doping Agency (WADA) looked into allegations made by the former head of Russia's national anti-doping laboratory. Grigory Rodchenkov's claim that he doped dozens of athletes before the Games.The two-month investigation was led by Dr Richard McLaren, who said he had unwavering confidence in his findings. The damning report will fuel calls for a complete ban on Russia from the 2016 Summer Olympics, which gets under way in Rio de Janeiro on the 5th of next month. Russian track and field athletes are banned from international competition, including the Rio Olympics. But individual athletes can compete as neutrals, if they prove they are clean.Russia are currently challenging the ban on their athletes at the Court of Arbitration for Sport, with the tribunal expected to conclude on Thursday this week.