After winning a World Cup competition in Dusseldorf in December, Russian sprinter Alexei Petukhov was asked to describe the source of his strength in the post-race press conference. For most other skiers, the answer would have been simple: training, talent, good technique. But for Petukhov, with four of his Russian countrymen banned from the sport over the past year for doping violations, it was a tough one, and he addressed the issue in his answer....
