What will the future hold for the former world number 5?
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The world no. 6 won her first title of the season last weekend
The American defeated the world number one to advance
Juan Martin Del Potro will advance to face Roger Federer on Wednesday
The Four-Seed still has a chance to leave New York as world no.1
The Argentine eliminated the 2014 US Open champion on Friday
The Frenchman overcame a strong effort by the young American
The Serb registered the first big upset at the US Open
The jury is still out on what the future may hold for the Australian
The 1977 Australian Open title is among the many accomplishments from the Brooklyn native