Sergio martinez: "i will KO floyd and pacquiao"?

he has all the tools and physical advantages to KO any lightweight including bonafide middleweights such as cotto or even floyd mayweather at any weight. knocking out pacquiao at 154 is like saying klitschko would easily KO a prime mike tyson. sergio would definitely enjoy a lot of advantages against manny but you can never put the pacman out that easy. im not sure if sergio would keep up with manny's pace and activity. he would sure hurt manny but would pacquiao allow it? would he be able to catch pac? that remains to be seen. sergio is a middleweight and we can understand why he mentioned mayweather, cotto and especially pacquiao. he has already established his name but beating any of these 3 would put him way up there. he sure has a high chance of beating these 3 but knocking out mayweather and pacquiao aint no easy task. both pacquiao and mayweather are capable of beating sergio. the only question is, will mayweather have the guts to face someone like sergio? cotto will not back down and we can never doubt manny's heart.