Pippa Middleton attends US Open

Arthur Ashe Stadium
© PA Photos
Pippa Middleton attends the US Open as a guest of world number one Roger Federer.

The sister of the Duchess of Cambridge has been in attendance at the US Open this evening.

Pippa Middleton, wearing a colour-blocked, open-collared sheath dress, had an accreditation that stated she was at the Arthur Ashe Stadium in New York as a guest of men's world number one Roger Federer.

Reports have also suggested that she was accompanied by Spencer Vegosen, a tennis player who is a graduate of Harvard University.

Middleton, 28, had been watching Victoria Azarenka's three-set victory over defending champion Samantha Stosur before rain stopped play at Flushing Meadows.

You can follow all the action from the US Open with Sports Mole's live commentary here.

Roger Federer
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