Mark Anderson becomes chief executive, replacing Kevin Neil who quit in the fallout from last summer's Games, with the swim team's performance marred by ill-discipline, drug use and drunkenness.

Phelps, the most decorated Olympian of all time with 22 medals, retired from swimming after bagging four golds and two silvers at last year's London Olympics.

US Olympian Michael Phelps gave a swimming class on Tuesday to Brazilian kids in a rough Rio de Janeiro neighbourhood that until two years ago was occupied by drug-trafficking gangs.

Swimming legend Ian Thorpe admits he is a nerdy bookworm who hardly fits the stereotype of an Australian sportsman, but says rumours he is gay are simply not true.

Australian world champion James Magnussen admitted on Sunday he had made mistakes at this year's London Olympics but added that his failure to win a gold medal had made him stronger.

Britain's Olympic medallist diver Tom Daley has issued a "come and get me" plea to television producers and film directors.

Australian swimming boss Kevin Neil vowed an investigation Sunday into reports of pranks, ill-discipline, and an initiation ritual involving sedatives among the London Games squad.

Japan's precocious 18-year-old Akihiro Yamaguchi set a new world record in the men's 200-metre breaststroke on Saturday at the national games.

The London Olympics may be over, but Britain's Prince Harry isn't letting the US get away with the swimming gold that easily.

Michael Phelps retired from swimming with more medals than any other Olympian. Don't expect him to lose any of them because of an ad campaign for Louis Vuitton.