Mosely and Hatton both agree that Manny hits harder than Floyd

"Having felt both guys punch, Pacquiao is the harder puncher because I went down. I was dizzy when I got up. I felt in that fight I didn't have a chin anymore," Mosley, who lost to Pacquiao in 2011, told ESPN.com.

Hatton, who fell to Pacquiao in two rounds, said there was no comparison.

"First thing I noticed about Manny was his speed like in the Floyd fight. But he was heavy-handed, a lot more heavy-handed than Floyd. He punches were more explosive. Floyd is more calculated. Manny clipped me with a lead right hook and even the non-power punches felt very, very heavy-handed," said Hatton.

Mosley, Hatton agree: Pacquiao hits harder than Mayweather| Pacquiao vs. Mayweather - GMA News Online Special Coverage