EXPLAINED: Why Olympics legend Michael Phelps is covered in red dots - WATCH

Michael Phelps, who won the 19th Olympic gold medal of his career on Sunday and helped the U.S. men`s team to victory in the 4x100 meters freestyle relay, is one of a number of Olympic athletes practicing "cupping".

Updated: Aug 09, 2016, 06:19 AM IST
EXPLAINED: Why Olympics legend Michael Phelps is covered in red dots - WATCH

New Delhi: Michael Phelps, who won the 19th Olympic gold medal of his career on Sunday and helped the U.S. men`s team to victory in the 4x100 meters freestyle relay, is one of a number of Olympic athletes practicing "cupping".

Here's what the American swimmer had to say about this ancient Chinese healing practice.