Floyd Mayweather Not so Subtly Calls out Conor McGregor

Floyd Mayweather recently reignited his rivalry with Conor McGregor with a bizarre Instagram video. Although Mayweather bested The Notorious in a boxing match months ago, it seems that Mayweather isn't done and wants to do another super fight. In a video posted to his personal Instagram, Mayweather stepped into an octagon teasing his entry into the MMA world. The former multi-division boxing champion is seen walking into the octagon rubbing his hands and saying "2018 Floyd Money Mayweather, MMA....