“I WOULD DESTROY MAYWEATHER… “: Demetrious Johnson thinks Floyd Mayweather would be EASY WORK in the octagon

Demetrious Johnson thinks Floyd Mayweather would be EASY WORK in the octagon – he'd obliterate the boxing superstar if the two clashed in the UFC. 

After Dana White confirmed he was talking with Floyd about a "UFC deal" … DJ immediately threw his name in the mix as a possible first opponent. 

In fact, Mighty Mouse joined the guys on the "TMZ Sports" TV show (airs weeknights on FS1) and broke down exactly how he'd punish the 40-year-old. 

As for Floyd, he told FightHype.com he's not planning on an MMA fight — but he also insisted he wasn't coming out of retirement to box Conor McGregor … and we all know how that turned out.