By Edward Chaykovsky

A shadow has been cast by some on last week's victory by WBC/WBO/WBA welterweight champion Floyd Mayweather Jr., who won a twelve round unanimous decision over Manny Pacquiao at the MGM Grand in Las Vegas.

After the match, Pacquiao revealed that he came into the contest with an injury to his right shoulder and it was further aggravated during the fourth round. Pacquiao had surgery on Wednesday. The rehab period will go for around four to six months.

Even if Pacquiao was 100% healthy, and he got knocked out in the contest, Mayweather believes that he wouldn't get full credit from his critics.

“They called me a chicken, from what I hear. I’m the winningest chicken I know. No matter how you win, as long as you win…. I won’t get my props, even if I would have knocked Manny out. I wouldn’t have got my props," Mayweather told Fighthype.com.

"Turn the tables — if he would have fought the same type of fight that I fought, they would have praised Manny Pacquiao. They would have said how ‘he’s such a genius,’ how he’s so marvelous, how everything lived up to expectations, how he took Mayweather’s game plan and used it on Mayweather."