People who have succeeded and accomplished their goals, were willing to do whatever it took to get there. They do more than expected every day. They have what you don't, because they were willing to do what you wouldn't.
In Ali's case, his training was intense, but he put in 110% effort every day. More than what his opponents were willing to do. He is a great example for striving for excellence. No one is born to stay in place. However, very few of us actually live up to our potential. Most of us lack to drive, the willpower, and vision to get there. Be phenomenal and strive for excellence every single day!