A lawyer for former US women's soccer star Abby Wambach entered a not guilty plea on Tuesday in the player's drunk driving case.

Wambach, 35, was arrested in Portland, Oregon, in the early hours of Sunday and booked after being stopped as she drove home from a dinner.

At an arraignment hearing in Portland on Tuesday, Wambach's attorney entered a not guilty plea on her behalf. Wambach's next court date is on April 26. She was not required to attend Tuesday's hearing. In a statement posted on her Facebook page on Sunday, Wambach apologized for what she described as a "horrible mistake".