LONDON, ENGLAND - SEPTEMBER 04: (Top - Bottom) David Grachat of Portugal, Kristijan Vincetic of Croatia, Brenden Hall of Australia, Jesus Collado of Spain, Kasper Zysek of Denmark and Eduard Samarin of Russia compete in the Men's 400m Freestyle - S9 heat 2 on day 6 of the London 2012 Paralympic Games at Aquatics Centre on September 4, 2012 in London, England. (Photo by Clive Rose/Getty Images)