UK Anti-Doping frustrated as George Winston escapes with two-year ban for testing positive for steroids Uk Anti-Doping chief executive Andy Parkinson said Winston has been banned for two years for testing positive to methandienone, trenbolone, and tamoxifen during a drug test in November 2012, although the organisation wanted to impose the maximum four year sanction. There are presently provisions in the Code to ban athletes for four years under aggravated circumstances, which we have successfully used in a number of cases, but when an athlete admits to a violation, these are not applicable. We do not think that this sends a strong enough message to the sports community and we will continue to press for tougher sanctions for serious dopers in the revised Code. Winston has been banned from competition until December 2014.