Conor McGregor would kick Floyd Mayweather's ass in the boxing ring ... that's according to UFC champ Joanna Jedrzejczyk, who says she's so sure of McGregor, SHE'D BET MONEY ON IT. Joanna is a UFC stud herself ... 14-0 and the reigning…
TMZ Staff, TMZ
Fri, 02/17/2017 - 2:52am