Pippa and James spotted in royal box at Wimbledon

The Duchess of Cambridge isn't the only tennis fan in the family. Her siblings Pippa Matthews and James Middleton have been spotted in the royal box of centre court on day seven of the Wimbledon Championships.

Pippa, 35, dressed in a similar style to older sister Kate, 37, choosing a pink ensemble by Stella McCartney. She teamed the outfit with a wide-brimmed hat which she removed once seated.

According to Wimbledon's strict protocol, hats are discouraged in the royal box so as not to "obscure the vision of those seated behind them", according to the championship website.

The pair watched Serena Williams, Novak Djokovic and Roger Federer on Centre Court.

James, 32, was dressed in a grey suit with a light blue navy shirt and navy tie.

The siblings wore sunglasses while watching the tennis tournament.

Kate, Pippa, James and their parents regularly attend Wimbledon. In 2012, Pippa and Kate attended the event together.

Pippa and James clearly enjoyed themselves, all smiles as they took part in a Mexican wave.

Kate surprised fans a week ago by making a Wimbledon appearance, forgoing the royal box at first to watch British player Harriet Dart on Court 14, before heading to Centre court.

The Duchess chose a white shirt dress by Alexander McQueen with black accessories.

Kate is a patron of the All England Lawn Tennis and Croquet Club, which hosts the world’s most prestigious annual tennis champion.