Michael Phelps wins 19th Olympic gold.

 Michael Phelps performance to claim an astonishing 19th Olympic gold medal of his career on Sunday.  The 31-year-old, who quit the sport after the 2012 Games, was back in Rio as Team USA eased to victory in the 4x100 meters freestyle relay. Phelps has now won 23 medals in total, extending his record as the most decorated Olympian of all time.