Wimbledon 2011: Petra Kvitova overpowers Tsvetana Pironkova

Petra Kvitova has too much for Tsvetana Pironkova in their Wimbledon quarter-final.

Number eight seed Kvitova made the semi-finals as her powerful ground strokes put paid to the challenge of the number 32-ranked Bulgarian, winning 6-3 6-7 (5-7) 6-2 on Court One.

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