Hundreds of athletes are vying to take home the gold when the Summer Olympics start next month in Rio!
Being an Olympic gold medalist is the highest honor an athlete can achieve, but that doesn't necessarily mean the winner will become a household name.
Sure, we all know pros like Gabby Douglas and Michael Phelps, but what about the lesser-known medalists?
Viewers might be familiar with names like Christine Ohuruogu, Usain Bolt, or Greg Rutherford — though putting a name to a face is harder than it looks!
Brush up for the Rio Olympics by seeing if YOU can name 20 gold medal winners (below)!