FILE - This July 5, 2012 file photo shows American cyclist Levi Leipheimer waiting to start of the fifth stage of the Tour de France cycling race in Rouen, France. Leipheimer says he retired from professional cycling when his six-month ban for doping violations ended March 1 and he was unable to sign with a new team. Leipheimer told The Press Democrat of Santa Rosa of his decision Sunday, May 19, 2013. (AP Photo/Christophe Ena, File)
FILE - This July 5, 2012 file photo shows American cyclist Levi Leipheimer waiting to start of the fifth stage of the Tour de France cycling race in Rouen, France. Leipheimer says he retired from professional cycling when his six-month ban for doping violations ended March 1 and he was unable to sign with a new team. Leipheimer told The Press Democrat of Santa Rosa of his decision Sunday, May 19, 2013. (AP Photo/Christophe Ena, File)