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 . Olympic champion Cesar was only cleared to compete in the championships when a special hearing of the Court of Arbitration in Sport let him off with a warning after he tested positive for a banned diuretic in May . 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 . Score: 7