Sweden’s Robin Soderling, who was ranked 25th in 2009, stuns No. 1 Rafael Nadal at that year’s French Open, where he had been undefeated. At the same tournament three years later, the 111th-ranked Virginie Razzano (pictured) of France beats Serena Williams in the first round. At this year’s Australian Open, the 117th-ranked Denis Istomin of Uzbekistan defeats Novak Djokovic.

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