Reigning Tour de France champion Cadel Evans says the two-year doping ban for Spanish cyclist Alberto Contador shows the sport is at the forefront in the battle against drugs.

Alberto Contador

Contador received the sanction on Monday after testing positive for banned anabolic agent clenbuterol during the 2010 Tour de France and was stripped of his victory.

"Cycling has done more than enough to show it's doing the right things when it comes to the fight against drugs," Australian broadcaster SBS quoted him as saying.