Renato Moicano says Rafael Fiziev is "the worst fight in the rankings" for Charles Oliveira and worries what will happen at UFC Rio.

The UFC’s October 11 return to Rio de Janeiro just got a main event, a pivotal lightweight showdown between two of the most technically refined Muay Thai stylists in the division, if not the entire UFC.

The UFC is heading to Rio on October 11th and it will be the homecoming for a former world champion. Former lightweight champion Charles “Do Bronx” Oliveira (35-11) will fight in Brazil for the first time in over five years as he takes on 10th ranked lightweight contender Rafael Fiziev (13-4). The promotion announced the main event this morning.