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Serena's chance to become best ever female player

In a glittering career that has already brought her 20 grand slams titles, Serena Williams is still chasing one piece of elusive history as her Wimbledon 2015 campaign begins against Margarita Gasparyan this afternoon.

Having already won the opening two slams of the season in Australia and France, many commentators now expect her to go on and become the first player to win the sport's four biggest prizes in the same calendar year since a 19-year-old Steffi Graf in 1988.

The World number 1 has, however, been keen to downplay the significance of such a feat.

Having already won the 'Serena Slam' - holding all four Majors at the same time - and just a Wimbledon title away from repeating the trick, the 33-year-old has said that there is no extra pressure at present to complete the calendar grand slam and match the achievement of Graf, Margaret Court and Maureen Connolly.

Her admitted distaste for the surface, recent form in SW19, and a draw that could see her meet Ana Ivanovic in the quarters, and Maria Sharapova in the last four, all mean that nothing can be taken for granted but it would still rank as a surprise to see anyone else celebrating on centre court on Saturday week.

Her utter dominance of the game, and resultant lack of a genuine rival, can often cloud people's view of her place in history but a sixth Wimbledon title, followed by victory in September's US Open, would see the younger Williams sister stake another huge claim to being the greatest female tennis player of all time. Whether she admits it or not.

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