Floyd Mayweather Jr, 50 Cent, Justin Bieber, Marcos Maidana, Nelly & Shantel Jackson: Celebrity Feud - Money Mayweather Hits Back And Attacks 'Has Been' Rapper & 'Dirty Boxer'

Floyd Mayweather Jr has been relatively quiet during his war of words with rapper 50 Cent, who he was once the best of friends with. Many believed Floyd was hiding away, preparing to fight Marcos Maidana, possibly going to lunch with Justin Bieber, but he has finally added to one of the hottest ongoing celebrity feuds. The boxer has taken a ton of abuse over Nelly and ex-girlfriend Shantel Jackson dating, and for his reading ability, however, he has now slammed Fiddy and slammed his upcoming opponent, showing he can do social media chit-chat, too.

Fiddy started this mess by posting an insulting message with a picture of Nelly cuddling Floyd's ex, and then recently he insisted that he'd donate money if Floyd could read an entire page of a book without stuttering. Floyd did little but post a picture and go about his normal life, however, it seems he's had enough, taking aim at both Fiddy and Maidana. In reference to Fiddy challenging him to read, he hit back, saying "That's all he challenged me? He gotta raise the stakes. Does he still make music? I ain't heard him in a while."

Floyd insisted he has been busy preparing for the "dirty fighter" he will take on. He explained his thoughts on the bout, saying "I won (in May). I don't have to adjust. But I expect the same dirty fighter I saw the first time. My job is to be cautious and be smart. I'm not just fighting the fighter. I'm fighting all the critics, all the biased fans. When you're at the top, people want to take shots at you."

This may well be the last we hear from Floyd until he steps in the ring with Maidana, and he made sure that he used every spoken word to the absolute maximum, didn't he?