Landis' sample contains synthetic testosterone: report - Cycling - Yahoo! Sports

NEW YORK (AFP) - Some of the testosterone found in Tour de France winner Floyd Landis' "A" sample is from an external source and not his body's, The New York Times said quoting an unidentified International Cycling Union official. 

The carbon isotope test on the first of Landis' two urine samples taken after his 17th stage win in last month's tour contains synthetic testosterone, said the official with knowledge of the results from France's Chatenay-Malabry antidoping laboratory.