Muhammad Ali

Ali rewrote the heavyweight rulebook. Before him, big men stood flat-footed and traded. Ali moved like a welterweight — circling, dancing on his toes, making 220-pound fighters miss by inches with just his upper body. His jab was a piston: fast, accurate, and thrown from angles nobody expected from a tall fighter. He held his hands low, which drove trainers insane, but his reflexes were so fast he could pull back from punches that were already on the way. The "Ali Shuffle" was showmanship, but the footwork underneath it was serious — he could change direction mid-step and create angles that left opponents swinging at air. In the second half of his career, after the exile years slowed his legs, he developed the rope-a-dope: absorbing punishment on the ropes while his opponent punched themselves out, then firing back in the late rounds. Ugly, effective, and born out of necessity.