Prince William and Prince Harry play bike polo

Prince William and Prince Harry played bike polo on 13th July to help their cousin Zara Phillips raise money for charity.

They got on bicycles instead of ponies and wobbled around as they tried to score goals. They could only keep one hand on the handlebars. The other one had to clutch a polo mallet as they pedalled furiously on old bikes. The spectators laughed at the scene.

Harry had problems with his bike during the game when the chain fell off.

We do not know who won.

Zara Phillips persuaded William and Harry to take part in the match at Tidworth in Wiltshire, England.

Zara Phillips is Princess Anne's daughter and is a regular at the annual event which raises funds for Inspire, a charity dedicated to research into spinal cord injuries.