Is Floyd Mayweather Truly Scared Of Manny Pacquiao?

Summary: Is Floyd "Money" Mayweather deathly afraid of stepping into the boxing ring with Manny Pacquiao or not? Here we have a man in Floyd that has been in the ring with the best and dominated future hall of famers and has never lost a fight, yet, for the last few years since the public has been demanding that he face Manny Pacquiao they are now saying that Floyd is terrified to face Manny once and for all. But what is the real truth behind these accusations and what makes Manny Pacquiao the monster of an opponent that his fans make him out to be? His knockout loss to Mayweather victim Juan Manual Marquez is still a visual that haunts even his most die-hard fans as his recent inability to secure a knockout victory even over sub-par competition like Chris Algieri has done nothing else but to support the fact that Manny Pacquiao's best days are behind him. But yet and still, Floyd Mayweather is afraid. So answer the question: Is Floyd "Money" Mayweather truly afraid of Manny Pacquiao? Let's let it all hang out as far as your opinions on this topic goes and at least back up your explanations with FACTS and not simple useless chatter.