Greece's world indoor high jump champion Dimitris Chondrokoukis’ name was wiped off the Olympic Team roster on July 26 after testing positive for a banned substance, according to Reuters.

"Dimitris will not take part in the Olympic Games, leaving unfulfilled a dream of a lifetime," his father and coach Kyriakos Chondrokoukis said in a statement reported by Greek media and confirmed by a Greek athletics federation official.

The 24-year-old high jumper, a hot favorite for a medal in London, will seek a retest after testing positive for banned anabolic steroid Stanozolol, his father said.

Stanozolol, commonly sold under the name Winstrol, Tenabol and Winstrol Depot, is a synthetic anabolic steroid. It is commonly used as a performance enhancing drug and is banned from use in sports competition by the International Association of Athletics Federations.

"I will fight - we will fight - to respond and see exactly what happened," the statement said. “Not only for us as a family, but for the sports fans who have embraced Dimitris with so much love."

Greek Olympic Committee president Spyros Capralos stressed Greece’s zero tolerance on doping. "We want to get many medals, however we want clean medals," he told Reuters.

Chondrokoukis is the second Greek athlete to be kicked off the Greece’s Olympics Team in as many days. Triple jumper Paraskevi Papachristou was banned from the Game after tweeting a racist joke.

As regards doping in the Olympics, one of the biggest scandals in Olympic history transpired during the Athens Games in 2004 when Greek sprinters Kostas Kenteris and Katerina Thanou were thrown out of their home Olympics. They faked a motorcycle crash in order to avoid being tested.

In an interview with the BBC, David Howman, the director general of the World Anti Doping Agency (Wada), said he cannot guarantee this summer’s London Games would be the cleanest in history. "I'm far too cynical and have been let down too many times before," he said.

Nevertheless, anti-doping officials in London are planning to conduct some 5,000 tests – the highest number at any Olympics. The problem, however, is that the cheats always seem to be one step ahead of the testers.