Sharapova stunned as Federer through

NEW YORK: The US Open lost one of its top attractions when holder Maria Sharapova was beaten 6-4, 1-6, 6-2 by Polish teenager Agnieszka Radwanska in the third round on Saturday.

Sharapova lost just two games during her first two matches at the Open but never got on track against 18-year-old Radwanska, committing an uncharacteristic 49 unforced errors.

"You've got to give her a lot of credit for finishing the match and winning it," the second-seeded Sharapova told reporters.