Switzerland's Roger Federer celebrates his victory over Australia's Lleyton Hewitt during the fourth round match of the men's singles at the Wimbledon Tennis Championships in London, capital of England, on June 30, 2008. Federer won 3-0 and advanced into the quarterfinal.

Switzerland's Roger Federer returns the ball to Australia's Lleyton Hewitt during the fourth round match of the men's singles at the Wimbledon Tennis Championships in London, capital of England, on June 30, 2008. Federer won 3-0 and advanced into the quarterfinal.

Switzerland's Roger Federer celebrates his victory over Australia's Lleyton Hewitt during the fourth round match of the men's singles at the Wimbledon Tennis Championships in London, capital of England, on June 30, 2008. Federer won 3-0 and advanced into the quarterfinal.

(Xinhua News Agency July 1, 2008)