Team Sky '100% clean' amid Wiggins controversy

Team Sky will in future reveal all cases where its riders have been given permission to use banned substances for medical purposes. It follows the controversy over Sir Bradley Wiggins' use of a powerful anti-inflammatory drug to treat breathing difficulties before his 2012 Tour de France victory. Team principal Sir Dave Brailsford revealed the change of policy as he offered a robust defence of the decision to seek three Therapeutic Use Exemptions (TUEs) for Sir Bradley to be injected with the co