I have no problem with Viet Cong. No one from the Viet Cong called me a Negro," was the statement Muhammad Ali made on one occasion on April 28, 1967, and almost ended his boxing career, bringing him into oblivion. April 28 marks 53 years since the famous incident of Ali's rebellion and his refusal to apply for conscription by his country, the United States, and to perform military service in the Vietnam War. However, the history of Ali's rebellion and courage, born as Cassius Clay, began from his birth on January 17, 1942, in Louisville, Kentucky, where racial confrontations were the dominant force at the time. From a young age, Muhammad Ali learned to fight to overcome injustice, prejudice, and racial segregation, and it was also the period of the rise of Islam among the community of black American citizens. Read Also: Report: new FIFA decision to tackle coronavirus epidemic Clay's love affair with boxing began with a robbery when his bike was stolen at the age of 12 when the policeman who received his complaint advised him to learn to fight because it would not be his first trespassing accident. Six weeks later, Clay won his first fight as an amateur, and from that moment his name began to resonate so much that he became "the greatest". Since winning his Olympic title in 1960 at the Rome Olympics in light-heavyweight, his career began to develop as a professional boxer, and he went on to conquer the arena with 19 victories, including 15 by knockout. Clay took the stage as usual, but this time not inside the ring, but with his usual strong statements: "I'm the part you don't admit, but get used to me. Negro, self-confident, arrogant", he made these statements when social-rights activities began in the United States for equality. On February 25, 1964, Muhammad Ali was crowned heavyweight champion of the World Boxing Association, the World Boxing Council, and the New York Athletic Commission, when he knocked down Sonny Liston by technical knockout in the sixth round. "I am the greatest! I am the greatest!"A sentence that he repeated so much, so loudly that the whole world believed in its truth, that it was truly the greatest in the game. As usual, clay shocked the world the day immediately after his coronation as king of the world's boxing rings with one of his statements, when he declared that he had "converted to Islam", and that his new name would be Muhammad Ali, because the name Cassius Clay, meant to him a symbol of slavery. Although he has defended his title on nine occasions since that moment, the U.S. government had other plans, initially calling him to serve in the military and join the ranks of the army in the Vietnam War, which he refused, and even filed numerous appeals against this, causing the image that had long been untouchable for Americans to shake. On April 28, 1967, the Supreme Court rejected Muhammad Ali's appeal to apply for Army training in Houston, but he did not know what was waiting for him. Read also: Mbappe picks Ronaldo's goal as the best he has seen in stadiums The beginning was with Ali refusing to join the front with the army in the Vietnam War, to be sentenced to five years in prison, as well as being denied participation in any fight for three years due to the withdrawal of his license, as well as being stripped of his titles.