Michael Phelps admits to peeing in the pool

Michael Phelps has admitted to being guilty of peeing in the pool and thinks that everybody does the same.

According to Wall Street Journal, the 27-year-old swimming superstar, who has retired from competitive swimming after his success in the London Olympics, said that professional swimmers didn't bother clambering out to search for a toilet.

"I think everybody pees in the pool," Sports 24.com quoted him as saying.

"It's kind of a normal thing to do with swimmers. You know, when we're in the water for two hours we don't really get out, you know, to pee.

"We just go whenever we're on the wall. Chlorine kills it so it's not bad," he added.

Phelps is the most decorated Olympian of all time with 22 medals, which include a haul of 18 gold medals.