Demetrious Johnson challenges Floyd Mayweather to 'no grappling' UFC fight

As the pound-for-pound best fighter on the planet, "Mighty Mouse" would obviously have no issues slicing through Mayweather inside of the Octagon, especially after getting jacked to the gills . Johnson is so confident in his ability to run through Mayweather in a MMA fight that he's willing to take away one of the strongest facets of his game.