It's not roids but amulet that makes....

[Pons]

I am started to believe that Manny is using Amulet, look at the angle of his awkward punch that knock out Cotto in round 2, that was unbelievable.
Pacquiao’s amulet draws its power from the carabao (water buffalo), which is indigenous to the Philippines.

http://sports.inquirer.net/inquirers...w-his-strength