Australian Tallent dismisses Schwazer doping defence

"There has been a notice of a violation", a spokesman said but could not confirm newspaper reports that the positive was the result of a re-test of a January sample, taken after Schwazer had qualified for the Rio De Janeiro Olympics.

These allegations were initially dismissed by Schwazer's lawyer, Gerhard Brandstaetter, who slammed them as "false and unbelievable", and threatened legal action.

Jared Tallent, Alex Schwazer and Igor Glavan pose during award ceremony of the 50KM Race Walk at IAAF Race Walking Team Campionship Rome 2016, on May 7, 2016 in Rome, Italy.

Schwazer, who was banned for three years and nine months after testing positive for EPO before the 2012 Olympics, returned to competition and won the 50-kilometer event at the world championships in Rome in May. The affair is unusual: "a test that was negative in January becomes positive in May after he won in Rome, with anabolic substances that have nothing to do with endurance sports".

Schwazer said he had flown alone to Turkey the previous September with 1,500 euros (now $1,700) to buy the blood booster at a pharmacy.

Italy's former world figure skating champion Carolina Kostner was banned for 16 months for helping Schwazer, her former boyfriend, evade a doping control. He said he disguised it in a box of vitamins in a refrigerator at Kostner's home in Germany, where he was staying in July in the buildup to the 2012 Games.

The 31-year-old Schwazer, who was also handed an eight-month suspended prison sentence by a court in Bolzano in December 2014, had said he was quitting the sport but later changed his mind.

At the time, several fellow Italian Olympic athletes criticized Schwazer's return, saying he should have been excluded for life, while the head of the Italian Olympics Committee, Giovanni Malago, hailed his new success as a "great story" of redemption. "It's the worst thing that could happen", Schwazer said.

"I'm sure there are people who don't want me to go the Olympics. I don't have much time but I will do all I can to get this cleared up". "But I still believe", Schwazer added.

"At the moment I'm shocked", FIDAL President Alfio Giomi told Associated Press.