South Korea's Shin Lam reacts after being controversially beaten in her Womens Fencing Epee Individual semi final match against Germany's Britta Heidemann at the ExCeL centre, London during the third day of the London 2012 Olympics.

USA's Michael Phelps prior to the second Men's 200m Butterfly Semifinal at the Aquatics Centre in the Olympic Park, London, on the third day of the London 2012 Olympics.

Tempers flare between Great Britain's James Tindall and Argentina's Lucas Rey during the Pool A match at the Hockey Centre in the Olympic Park during the third day of the London 2012 Olympics.

Ireland's Aoife Clark riding Master Cursoe on the cross country course during The Eventing at Greenwich Park, on the third day of the London 2012 Olympics.

Ireland's Sycerika McMahon competes in the Women's 200m Individual Medley Heats at the Aquatics Centre in the Olympic Park, London, on the third day of the London 2012 Olympics.

Ireland's Sycerika McMahaon after competing in the Women's 200m Individual Medley Heats at the Aquatics Centre in the Olympic Park, London, on the third day of the London 2012 Olympics.

Alex Ong, aged 13 from St. Albans, holds a Union Flag above his head beneath the Olympic Stadium, London, as he arrives at the Olympic Park to watch the Swimming and Basketball, on the third day of the London 2012 Olympics.

Great Britain's Paul Drinkhall during his Third Round defeat to Germany's Dimitrij Ovtcharov on the third day of the London 2012 Olympics.

The Laser Radial fleet races past HMS Bulwark in Weymouth Bay. The Royal Navy ship is the the base for security operations at the Olympic sailing venue.

Great Britain's 49er crew of Steve Morrison and Ben Rhodes round the windward mark during today's racing off Weymouth.

Great Britain's Zara Phillips riding High Kingdom on the cross country course during The Eventing at Greenwich Park, on the third day of the London 2012 Olympics.

Great Britain's William Fox-Pitt riding Lionheart on the cross country course during The Eventing at Greenwich Park, on the third day of the London 2012 Olympics.

Great Britain's Sam Oldham competes on the parallel bars during the Artistic Gymnastics team final at the North Greenwich Arena, London, on the third day of the London 2012 Olympics.

Great Britain's Louis Smith competes on the pommel horse during the Artistic Gymnastics team final at the North Greenwich Arena, London, on the third day of the London 2012 Olympics.

USA's Missy Franklin smiles on the podium with her gold medal after winning in the Women's 100m Backstroke Final at the Aquatics Centre in the Olympic Park, London

Japan's Takeshi Matsuda after winning the first Men's 200m Butterfly Semifinal at the Aquatics Centre in the Olympic Park, London,