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On This Day in US Open History: Sept. 2, 2009 - Official Site of the 2023 US Open Tennis Championships - A USTA Event
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Photos: Juan Martin del Potro through the years at the US Open, from 2009 champion and beyond - Official Site of the 2023 US Open Tennis Championships - A USTA Event
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Caroline Wozniacki ends Melanie Oudin's fairytale run at the US Open | US Open tennis | The Guardian
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50 for 50: Juan Martin del Potro, 2009 men's singles champion - Official Site of the 2023 US Open Tennis Championships - A USTA Event
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