Sport: Fina World Swimming Championships

Diguan Pigot of Surinam is silhouetted as he competes in the men's 50m breaststroke heats Photograph: Lars Baron/Bongarts/Getty Images

The swimmers dive backwards as they start a women's 100m backstroke heat Photograph: Kerim Okten/EPA

Romania's Camelia Alina Potec competes during the women's 1,500m freestyle heats Photograph: Francois Xavier Marit/AFP/Getty Images

Competitors swim in a heat of the men's 100m backstroke Photograph: Gregorio Borgia/AP

Eric Shanteau competes in the men's 100m breaststroke final. It was not a good day for Shanteau as he missed out on bronze by just three hundredths of a second and also saw his championship record time broken Photograph: Francois Xavier Marit/AFP/Getty Images

The tattoo of Italy's Federica Pellegrini is seen after she leaves the pool following her women's 200m freestyle heat Photograph: Francois-Xavier Marit/AFP/Getty Images

Sarah Katsoulis, left, Yuliya Efimova and Ilaria Scarcella, right, prepare to surface at the start of their women's 100m breaststroke heat Photograph: Al Bello/Getty Images

Austria's Mirna Jukic competes in a women's 100m breaststroke preliminary heat Photograph: Marcus Brandt/EPA

Rebecca Soni in action during the second women's 100m breaststroke semi-final. The American progressed to the final after winning the race with a world record time of 1:04:84 Photograph: Francois Xavier Marit/AFP/Getty Images

Michael Phelps, in white cap, lines up with other competitors on the starting blocks ahead of a men's 200m butterfly heat Photograph: Al Bello/Getty Images

Abib Sereme of Mali competes in the men's 50m breaststroke heats Photograph: Quinn Rooney/Getty Images

Dominique Perreault of Canada in action during the women's water polo quarter-final match against Hungary. Perreault scored a hat-trick as Canada beat Hungary 9-7 to progress to the semi-final where they will face Russia on 29 July Photograph: Srdjan Suki/EPA

Alison Gregorka of the US, right, fights for the ball with Spain's Maica Garcia during their water polo quarter-final which the US won 9-6 Photograph: Andreas Solaro/AFP/Getty Images