Floyd Mayweather Jr, the face of boxing for more than a decade, punctuated a stellar yet controversial career with a technical knockout over U.F.C. champ and first-time boxer Conor McGregor on Saturday night. http://i.imgur.com/mtCjr39.gifv https://twitter.com/canalplus/status/901669160098377729 https://streamable.com/l1lgx https://streamable.com/1yh2v https://twitter.com/drakesplug/status/901669013935284225 https://twitter.com/bexonair/status/901670043972456448