Competitors work to pull a woman up an obstacle where competitors must jump to the top of a half pipe during the Tough Mudder at Mt. Snow in West Dover, Vermont, on July 15, 2012. The Tough Mudder is a nine mile endurance event which runs competitors through a military style obstacle course complete with mud, water and fire. [Photo/Agencies]

Roger Federer of Switzerland holds the winners trophy after defeating Andy Murray of Britain (L) in their men's singles final tennis match at the Wimbledon Tennis Championships in London, on July 8, 2012. [Photo/Agencies]