Oussama Mellouli after winning bronze in the open water 10k race at the 2013 World Championships at Moll de la Fusta in Barcelona. Getty
Tunisia's Oussama Mellouli kisses his gold medal after winning the 10km open water swimming marathon at the London 2012 Olympic Games at Hyde Park. Mellouli claimed victory to become the first person to win Olympic titles in both pool and open water races. AFP
Tunisia's Oussama Mellouli after winning the 1500m freestyle final at National Aquatics Centre, during the 2008 Olympic Games in Beijing. Oussama Mellouli sealed gold in a time of 14:40.84. Australia's Grant Hackett was second and Ryan Cochrane of Canada was third. AFP
Oussama Mellouli competes in the 1500m freestyle heats at the 2004 Olympic Games in Athens. Getty
United States' 400m individual medley gold medalist Michael Phelps, centre, alongside Hungarian swimmer Laszlo Cseh, right, who took silver, and bronze-medal winner Oussama Mellouli at the 2003 World Championships in Barcelona. AFP
Oussama Mellouli celebrates his gold in the 400m individual medley at the 2004 World Swimming Championships at the Conseco Fieldhouse in Indianapolis, United States. Getty
Oussama Mellouli after winning 1500m freestyle gold at the 2009 World Championships at the Stadio del Nuoto in Rome. Getty
Oussama Mellouli after winning bronze in the open water 10k race at the 2013 World Championships at Moll de la Fusta in Barcelona. Getty
Tunisia's Oussama Mellouli kisses his gold medal after winning the 10km open water swimming marathon at the London 2012 Olympic Games at Hyde Park. Mellouli claimed victory to become the first person to win Olympic titles in both pool and open water races. AFP
Tunisia's Oussama Mellouli after winning the 1500m freestyle final at National Aquatics Centre, during the 2008 Olympic Games in Beijing. Oussama Mellouli sealed gold in a time of 14:40.84. Australia's Grant Hackett was second and Ryan Cochrane of Canada was third. AFP
Oussama Mellouli competes in the 1500m freestyle heats at the 2004 Olympic Games in Athens. Getty
United States' 400m individual medley gold medalist Michael Phelps, centre, alongside Hungarian swimmer Laszlo Cseh, right, who took silver, and bronze-medal winner Oussama Mellouli at the 2003 World Championships in Barcelona. AFP
Oussama Mellouli celebrates his gold in the 400m individual medley at the 2004 World Swimming Championships at the Conseco Fieldhouse in Indianapolis, United States. Getty
Oussama Mellouli after winning 1500m freestyle gold at the 2009 World Championships at the Stadio del Nuoto in Rome. Getty
Oussama Mellouli after winning bronze in the open water 10k race at the 2013 World Championships at Moll de la Fusta in Barcelona. Getty