Petkovic of Germany out 3 months with ankle injury

STUTTGART, Germany (AP) Andrea Petkovic of Germany will miss the next three months after tearing ligaments in her right ankle at the Porsche Grand Prix.
Petkovic says a scan confirmed the injury on Friday. She twisted her ankle in Thursday's match against top-ranked Victoria Azarenka in the second round.
Petkovic entered her first tournament since January ranked No. 12. She had been sidelined with a lower back injury.
She also has been nursing a right knee injury.
Updated April 27, 2012