Authorities say Solo was intoxicated early Saturday when she was accused of assaulting her sister and 17-year-old nephew.
But her lawyer, Todd Maybrown, says she was a victim in the altercation.
Solo was booked into jail for investigation of two counts of fourth-degree domestic violence assault. She is set to appear in court Monday afternoon.
The 32-year-old Solo has won two Olympic gold medals with the U.S. women's national team and also plays with the Seattle Reign of the National Women's Soccer League. In her last appearance for the U.S., Solo recorded her 71st career shutout, a 1-0 victory over France on June 14.
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