Jo-Wilfried Tsonga, Roger Federer, Serena Williams and Caroline Wozniacki all advanced to the quarter-finals of the US Open during day eight at Flushing Meadows.
Browse through images from the day's play in the gallery below.
In Pictures: US Open Day Eight
By Liam Apicella, Features Editor
Jo-Wilfried Tsonga, Roger Federer, Serena Williams and Caroline Wozniacki all advanced to the quarter-finals of the US Open during day eight at Flushing Meadows.
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