The youngest ever UFC fighter has a lot of confidence, but according to Aljamain Sterling, not enough gym etiquette.
Raul Rosas Jr. was signed to compete in Dana White’s Contender Series at age 17, and then won his official UFC debut this past weekend after just turning 18. While most pundits hope the teenage prospect would be slowly built up to reach his potential, Rosas instead immediately asked to be “fast...