Wimbledon Wildcards: From Sharapova to Navratilova
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Alison Riske had never won a Grand Slam match before Wimbledon in 2013; she suprised everyone with a run to the third round before being beaten by Kaia Kanepi, who would knock Laura Robson out in the next round (Getty)
Wimbledon wildcards have the potential to cause quite a shock at the tournament. We look back at some of the most famous performances.