Australia’s James Magnussen after competing in the men’s 100m freestyle semi-finals (CHRISTOPHE SIMON/AFP/GettyImages)

Australia's James Magnussen after competing in the men's 100m freestyle semi-finals (CHRISTOPHE SIMON/AFP/GettyImages)

Australia’s James Magnussen reacts after competing in the men’s 100m freestyle semi-finals during the swimming event at the London 2012 Olympic Games on July 31, 2012 in London. AFP PHOTO / CHRISTOPHE SIMON (Photo credit should read CHRISTOPHE SIMON/AFP/GettyImages)