I won my first fight when I was eleven years old, and I've been throwing punches ever since. Fighting is the purest, truest, most elemental thing there is. Some people describe heaven as a sea of unending white. Where choirs sing and loved ones await. But for me, heaven was something else. It sounded like the bell at the beginning of a round, it tasted like adrenaline, it burned like sweat in my eyes and fire in my belly. It looked like the blur of...