Brazilian jiu-jitsu
martial art focusing on grappling and ground fighting, originally based on Kodokan judo newaza taught by Japanese judoka, that developed independently in Brazil from experimentation and adaptation by Carlos and Hélio Gracie, Luiz França, et al.
Could a white belt defeat Jon Jones in a Brazilian jiu-jitsu match?
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.
What color belt does Jon Jones have in Brazilian jiu-jitsu? In belt color ranking in Brazilian jiu-jitsu, where is #1?  In belt color ranking in Brazilian jiu-jitsu, where is white belt? Is #2 higher than #3?