Q: Could a white belt defeat Jon Jones in a Brazilian jiu-jitsu match? Now, let's think step by step:
A white belt is the lowest ranking in Brazilian jiu-jitsu. Jon Jones has a purple belt in Brazilian jiu-jitsu under Roberto Alencar. A purple belt is the second highest ranking in Brazilian jiu-jitsu. Jon Jones is one of the greatest combat sports athletes to ever live.
The answer: no.