BBC Sport - Wimbledon 2014: Andrea Petkovic slice surprises Katarzyna Piter

Petkovic slice surprises Piter

Andrea Petkovic makes a beautiful backhand slice against Katarzyna Piter during their first round match at Wimbledon.

Petkovic went on to win the match in straight sets - the 20th seed from Germany earning a 6-1 6-4 victory.

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