Simone Biles Poses for Picture with NBA Icon Shaquille O'Neal Before Super Bowl

United States gold-medal gymnast Simone Biles is 4'9".

So, she would look short next to most other athletes.

But put the 19-year-old next to former NBA big man Shaquille O'Neal, who's 7'1", and you've got a simply outrageous size difference.

The two appear to have met before Super Bowl 51 kicked off in Houston.

[Twitter]