In a study commissioned by the European Soccer Federation, UEFA, has shown there could be a doping problem in the sport. The German broadcaster ARD has seen the study which was conducted by 12 European anti-doping labs where more than 4,000 urine samples from about 900 top players between 2008 and 2013, mainly from the European leagues, were tested. Their study saw 7.7 per cent return high levels of testosterone, according to The Daily Telegraph. High levels could mean use of banned substances. In the Anti-Doping Database we have registered 234 doping cases in soccer, only two this year. Which is a drop from six in 2014, which again was a drop from 17 doping cases in 2013.