Andrea Petkovic out of Australian Open
MELBOURNE, Australia -- Andrea Petkovic has withdrawn from the Australian Open with a stress fracture in her lower back.
Petkovic, ranked No. 10, lost 7-5, 6-4 to Agnieszka Radwanska of Poland in a second-round match at the Sydney International on Tuesday. She needed an injury timeout during the match to receive treatment from a trainer.
The 24-year-old Petkovic was seeded 10th at the Australian Open, which begins Monday at Melbourne Park.
The German is known for her celebratory ...
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