Professional boxer and world heavyweight champion Rocky Marciano from US was the only champion who retired undefeated. Born in a poor family, Rocky understood the value of money and spent his entire life ensuring that he could give all the comforts to his family, especially his mother. Growing up like a typical American kid, Rocky played football and baseball in his youth and dreamt of making a career in one of these games. He was part of the school baseball team which he quit because he flouted a rule. Eventually, he discontinued school after the tenth grade. Rocky had his first tryst with boxing much later when he joined the Army. There were many who ruled out the option of Marciano succeeding as a professional boxer but he proved them wrong. He was sluggish compared to other boxers, but was known for his famous punch and endurance. Marciano improved his boxing skills and remained undefeated knocking most of his opponents. It was trainer Charlie Goldman who trained Marciano in his trademark move. He was never counted in the list of top 5 champions of the world, but he had a lot of hometown supporters who followed him everywhere. They would shout ‘Timmmmmberr’ whenever Rocky was ready to knockout his opponent. Read on to more about his life and works.