Live! Watch Conor McGregor UFC 183 Q&A video stream from 'Silva vs. Diaz' weigh ins

Ultimate Fighting Championship (UFC) featherweight fighting sensation Conor McGregor is back in "Sin City" -- and probably out of breath after all that running -- to host the UFC 183: "Silva vs. Diaz" weigh in fan Q&A session. "Notorious" is expected to fight Jose Aldo for the 145-pound strap later this year (more on that here) and you can bet the bulk of his questions will center around his upcoming showdown against the Brazilian. Be sure to catch the live stream at 5 pm.m ET right here in the embedded video player above and for complete UFC 183 weigh in results and live video click here.