Michael Phelps retires after 22nd Olympic medal
In the span of nine years, Michael Phelps is one of the world’s greatest Olympians, accumulating twenty-two Olympic medals including eight at the Beijing Olympics in 2008.

Michael Phelps is the ‘most decorated Olympian’ of all time / Photo by: Chris Graythen, Getty Images Europe
Only aged 27, the US swimmer has called for early retirement and announced that he would not compete in Rio for the 2016 Olympics.

