Michael Phelps takes his third gold of the world swimming championships . Phelps wins 100m butterfly but says he is short of peak fitness . U.S. superstar Phelps has a record 25 world titles . Score: 7
Michael Phelps takes his third gold of the world swimming championships . Phelps wins 100m butterfly but says he is short of peak fitness . U.S. superstar Phelps has a record 25 world titles . Brazil 's Cesar Cielo wins 50m free for his second gold in Shanghai .