Pool of champions

Italy's Federica Pellegrini reacts after she competed in the final of women's 400-metre freestyle swimming event in the FINA World Championships at the indoor stadium of the Oriental Sports Center, in Shanghai. (AFP)
The Dutch team celebrate after winning the women's 4x100m Freestyle Relay at the FINA Swimming World Championships in Shanghai, China. (AP)
Italy's players celebrate after beating Australian in a penalty shootout in the women's water polo quarter-final match at the 14th FINA World Championships in Shanghai. (REUTERS)
Dana Vollmer, center, of the U.S. shows her gold medal with Australia's Alicia Coutts, left, silver, and China's Lu Ying, bronze, after the women's 100m Butterfly final at the FINA Swimming World Championships in Shanghai, China. (AP)
Australia's Alicia Coutts hold up silver medal for the women's 200 meters Individual Medley final at the FINA 2011 Swimming World Championships in Shanghai, China. (AP)
From right Italy's Allegra Lapi, (6), Martina Savioli, (5), and Aleksandra Cotti, (11), celebrate with their team officials after defeating Australia during a quarter finals match for the women's water polo event at the FINA Swimming World Championships in Shanghai, China. Italy defeated Australia 14-12. (AP)
US swimmer Rebecca Soni smiles after she competed in the semi-finals of the women's 100-metre breaststroke swimming event in the FINA World Championships at the indoor stadium of the Oriental Sports Center in Shanghai. (AFP)
Italy's Federica Pellegrini leans over the rope at her women's 200m freestyle heats at the 14th FINA World Championships in Shanghai. (REUTERS)
China's Sun Yang jumps off the block at the start of the men's 800m freestyle heats at the 14th FINA World Championships in Shanghai. (REUTERS)
Anthony Azevedo (L) of the U.S. fights Hungary's Gergely Kiss for the ball during their men's water polo quarter-final match at the 14th FINA World Championships in Shanghai. (REUTERS)
Hungary's Norbert Hosnyanszky (R) fights Brian Alexander of the U.S. during their men's water polo quarter-final match at the 14th FINA World Championships in Shanghai. (REUTERS)