- cycling - doping - Olympic Games
AFP - American cyclist Tyler Hamilton has retired from the sport after testing positive for steroids, according to the specialist cycling website cyclingnews.
The 38-year-old tested positive for a banned substance in an out-of-competition drug test taken in February by the United States Anti-doping Agency (USADA).
"I took a banned substance so I need to take whatever penalty they will give me and move forward," Hamilton said.
Hamilton decided to retire after admitting to having taken an illegal substance in a vitamin supplement he was using to combat depression.
"Today is about my leaving the sport and to talk about my depression, not the past," he said. "I don't want to talk about that anymore. It's about moving forward and taking care of myself.
"My future in the sport is yet to be determined. I'll live with that. I have officially retired right now."
The 2004 Olympic time-trial champion became the first athlete to be found guilty of doping by blood transfusion later that year.
The American, who rides for the American team Rock Racing, was subsequently suspended for two years.
Hamilton pulled out of last month's Tour of Castilla y Leon citing "bronchitis", after rumours began to circulate that he had failed a drug test.
"No one officially knew about it," Hamilton said.
"I took a few weeks to figure out my options. I knew it was the calm before the storm. I needed that time to spend with my family, talk to them about what was going to happen and what I am going through."