#4 Conor McGregor vs. Max Holloway 2
At number 4 we actually have a fight that has already taken occurrence. In the first meeting between these two men, Conor McGregor scored a very convincing unanimous decision victory, however, many people believe that if the contest was to take place now, it would be a lot closer.
Since the defeat to McGregor, Holloway has gone on an incredible 12-fight win-streak including two victories over former pound-for-pound number one, Jose Aldo and a victory over the former lightweight champion, Anthony Pettis.
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McGregor is coming off of that crushing defeat at UFC 229 and has called for an immediate rematch. He also has the Nate Diaz trilogy to complete. This is a fight we may not see take place again given the number of options 'The Notorious One' has in front of him but it would sure be an all-out war on the feet.