Highlights of day four of the 2016 US Open tournament

Updated: 2016-09-02 10:40

(Agencies)

Highlights of day four of the 2016 US Open tournament

Agnieszka Radwanska of Poland returns a shot to Naomi Broady of the United Kingdom (not pictured) on day four of the 2016 US Open tennis tournament at USTA Billie Jean King National Tennis Center in New York, US, on Sept 1, 2016. [Photo/Agencies]

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