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Tennis - 2013 Wimbledon Championships - Day Three - The All England Lawn Tennis and Croquet Club

Portugal's Michelle Larcher De Brito celebrates beating Russia's Maria Sharapova during day three of the Wimbledon Championships at The All England Lawn Tennis and Croquet Club, Wimbledon.

2013 Wimbledon: Meet the giant killers

Every Grand Slam has its share of underdogs who beat the odds and upset their fancied opponents.

The 2013 edition of Wimbledon - the third Slam of the year - is no different as former champions Roger Federer, Maria Sharapova and Rafael Nadal have already been dumped out in the first three days.

ALSO SEE: A day of upsets and pullouts at Wimbledon; Stakhovsky brings down 'the legend and his ego'; "Dreddy" hails his greatest win at a grand slam; Nadal suffers recurring Wimbledon nightmare.