There are certain to be at least a few mismatches during this month's Olympic Games, when the heavyweights take on the underdogs across 42 different sports in Brazil.
Simone Biles offered a visual representation of that concept on Tuesday, albeit not in the form of a direct sporting contest.
The artistic gymnast, expected to be among the stars of the Games, ran into a fellow athlete from Team USA upon her arrival in Rio.
And the 1.45 metre 19-year-old could not resist posing for a picture with towering 2.03m volleyball player David Lee.
size difference in olympians doesn't matter, depending on what sport you do 6'8" & 4'8" pic.twitter.com/xiU9zIBXJH-- Simone Biles (@Simone_Biles) August 2, 2016
Biles and her team-mates also located the iconic Olympic rings in the athletes' village as they prepare for the women's gymnastics competition to get under way on Sunday.
oTEAM USAo pic.twitter.com/ZOwSr1M2j7-- Simone Biles (@Simone_Biles) August 2, 2016