Floyd Mayweather Jr. Says He'll Slap 'Punk Ass' Conor McGregor

Floyd Mayweather Jr. has vowed to "slap the s--t" out of "punk ass" UFC lightweight titleholder Conor McGregor as the pair continued their war of words over social media. FightHype released a video of Mayweather's recent Periscope session as the 39-year-old addressed his would-be boxing opponent from poolside in a profanity-filled rant (warning: NSFW language): The Irish Mirror'sCormac O'Shea provided a partial transcript of the speech, in which Mayweather said:"I'll f--k McGregor up too. That p...