( CNN ) -- Kazakh cyclist Alexander Vinokourov will be free to launch his competitive comeback before the end of next month following a Court of Arbitration for Sport ( CAS ) ruling in Switzerland on Tuesday . Kazakh rider Vinokourov will be free to resume competitive cycling before the end of next month . Vinokourov was originally suspended for one year by his federation ( KCF ) after the pre-race favorite was thrown out of the 2007 Tour de France for blood doping . The International Cycling Union ( UCI ) disputed the length of the ban which should have been for two years under their rules . Parties involved agreed the issue should go to arbitration and Vinokourov , who 'retired ' after being banned , has now been told his ban will be for two years . This year 's Tour de France runs from July 4-26 while Vinokourov has been told by CAS he can resume competitive action two days before the race ends in Paris . Vinokourov has said he wants to launch a comeback , preferably with Astana alongside Lance Armstrong and Alberto Contador . `` My dream would be to win the world championship and wear the rainbow shirt for my last year in 2010 , '' he said last month . Swiss-based CAS issued its preliminary decision in the arbitration between the UCI , Vinokourov and the KCF in a Web site statement on Tuesday . CAS said : `` The decision adopted on 5 December 2007 by the Anti-Doping Commission of the Kazakhstan Cycling Federation is set aside . `` Mr Vinokurov committed an anti-doping rule violation under Articles 15.2 of the Anti-Doping Regulations of the Union Cycliste Internationale and , according to Articles 261 , 268 and 275 of the Anti-Doping Regulations , is declared ineligible for a period of two years commencing on 24 July 2007 . `` Mr Vinokurov will be eligible to compete in international competitions as of 24 July 2009 . ''
Federation cyclist Vinokourov is told his doping ban is for two years . Pre-race favorite was thrown out of the two years Tour de France for blood doping . Banned for year by Kazakh , Vinokourov can resume cycling on 2007 .