The day before the U.S. women's soccer team departs for its Olympic training camp in England, goalkeeper Hope Solo has accepted a public warning from the U.S. Anti-Doping Agency (USADA) after testing positive for a prohibited substance. Solo won't face any punishment beyond the warning since the agency accepted her reasoning that the presence of the prohibited substance was from a doctor-prescribed medication for premenstrual purposes.

[ Photos: Hope Solo will be vying for her third straight gold medal ]

From the USADA's official website:

Solo, 30, tested positive for Canrenone as the result of an out-of-competition urine sample collected on June 15, 2012. Canrenone is prohibited under the USADA Protocol for Olympic and Paralympic Movement Testing and the International Federation of Association Football (FIFA) anti-doping rules, both of which have adopted the World Anti-Doping Code ("Code") and the World Anti-Doping Agency Prohibited List.

Canrenone is classified as a Specified Substance, and therefore the presence of Canrenone in an athlete's sample can result in a reduced sanction. Solo was taking a prescribed medication, in a therapeutic dose under the care of a physician. The medication when metabolized resulted in the adverse analytical finding.

"I took a medication prescribed by my personal doctor for pre-menstrual purposes that I did not know contained a diuretic. Once informed of this fact, I immediately cooperated with USADA and shared with them everything they needed to properly conclude that I made an honest mistake, and that the medication did not enhance my performance in any way," said Hope Solo. "As someone who believes in clean sport, I am glad to have worked with USADA to resolve this matter and I look forward to representing my country at the 2012 Olympic Games in London."