Prince William and his brother Prince Harry enjoyed some healthy competition and showed some brotherly love as they played at the glamorous Audi Polo Challenge. The two British Princes were seen laughing happily as they showed off their horsemanship in London's Coworth Park.
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The royal brothers are playing this year in aid of three charities, Centre Point, Child Bereavement UK and WellChild.
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Princes William and Harry enjoyed a day out together at the Audi Polo Challenge
William, 32, and Harry, 30, looked every inch the royal sportsmen, wearing white polo kits and riding boots, as they chatted amiably on and off horseback. At one point, the younger of the Princes wrapped his arm around his brother's neck for a hug.
The sports event came ahead of William's return to work after taking three weeks' paternity leave following the birth of his and his wife the Duchess of Cambridge's daughter Princess Charlotte, and naturally teh new addition to the family wasn't far from anyone's minds.
Prince William was given an adorable pair of pink wellies for his baby daughter Charlotte
William was gifted an adorable pair of bright pink wellies for his new daughter, by the director of Audi UK.
The duo were in good company on their day out – Harry enjoyed chatting to Hollywood star Samuel L. Jackson at the after-polo party.
The Princes indulged in a spot of healthy competition and brotherly love
The Pulp Fiction star looked dashing in a red blazer and rounded specs as he chatted and laughed with royalty and celebrities alike.
Other A-listers that turned out for the sport event included Hollywood hunk Chris Hemsworth and his wife Elsa Pataky. The pretty actress, model and film producer was spotted chatting to William.
Actress Emily Blunt and her actor husband John Krasinski were also on the sidelines to cheer on the Princes, as were the pregnant Sophie Ellis-Bexter and her husband Richard Jones.
The day of fun came before Prince William returns to work as an air ambulance pilot after spending the past three weeks away from the public eye with his wife Kate, son Prince George and newborn daughter.
It is believed that the family have been residing at their home in Anmer Hall, on the Queen's Sandringham estate in Norfolk.