Solo (pictured top), 30, who starred for the US when they won Olympic gold in 2008, tested positive for Canrenone, which was found in her pre-menstrual medication.

The test was carried out of competition last month but does not jeopardise her place in the Olympic squad which will attempt to defend its title next month.

Canrenone is a prescribed medication classed as a specified substance by the United States Anti-Doping Agency (USADA).

That means it can result in a reduced sanction.

In a statement, Solo said: "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.

"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."

USADA chief executive Travis Tygart said in a statement: "As in all cases, we thoroughly investigate the circumstances, and always do what is fair and right for clean athletes and the integrity of sport."

Solo could be key for the US as they look to restore their position as the world's top women's team, but will face tough competition from world champions Japan and Brazil.

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