Conor McGregor is set to return to the UFC sometime later this year to fight Michael Chandler for the TUF finale, but he’s got his eyes on another opponent too … Floyd Mayweather. FOX News host Sean Hannity thinks Mayweather wasn’t using all his skills and was curious how he might fare in an MMA fight. “I watched you and Floyd Mayweather, and let me tell you, 90 percent of his skill he put behind his back