Roger Federer Wins Olympic Semi-Final v Juan Martin Del Potro | London 2012 Olympics
Full replay from Wimbledon as Roger Federer (SUI) takes on Juan Martin Del Potro (ARG) in the semi-final of the men's singles tennis event at the London 2012 Olympic Games (3 August 2012). Subscribe to the Olympic channel: http://bit.ly/1dn6AV5