I remember watching this video a couple years ago. I always say that the brain is the strongest muscle we have. Boxing is 90% mental and 10% being well conditioned. I know that Mayweather has the skill to beat Pacquiao but does he have the will to beat him? An ounce of doubt in a persons mind can spread like wild fire once planted in your mind. To me, a champion isn't someone who always wins, but someone who can fall, get back up, and push forward even better than before. Here are two of my favorite quotes about a strong mentality: "Champions aren't made in gyms. Champions are made from something they have deep inside them-a desire, a dream, a vision. They have to have the skill, and the will. But the will must be stronger than the skill." - Muhammad Ali "Nothing can stop the man with the right mental attitude from achieving his goal; nothing on earth can help the man with the wrong mental attitude." -Thomas Jefferson