Mathilde at "Best of Belgium"

Belgian Prime Minister Yves Leterme, Crown Prince Philippe and Crown Princess Mathilde watch the game between Kim Clijsters and Serena Williams during the 'Best of Belgium' event, to celebrate the start of the Belgian EU Presidency today in Brussels. The event includes a tennis match between Williams and Clijsters and concerts. It's a new world reccord for the biggest number of spectators for a tennis game.