Martinez would be a hard nights work for Floyd. I know some people said the same about Mosley but at 154 Martinez presents more problems than Oscar or Shane did and Sergio is alot closer to his prime.

Mayweather struggles with southpaws. Corley and Judah both caused him trouble with speedy lead right hooks that knocked Floyd off balance and appeared to stun him. Sergio is quick but he has weight behind it too. Also Floyds key weapon of the left jab to the body isnt as effective against guys who lead with their right foot. An elusive target will force Floyd to commit more to his shots and over extend with his right cross which will leave a counter opportunity. Having said that Id still favour Floyd. Handspeed is the answer and positioning. Martinez is good at what he does but Floyd is exceptional. He will work him out and have his nose infront. The longer it goes the more desperate Sergio becomes and he will be the one who has to take the risks which plays into Floyds hands.