To become a professional boxer, one must have skill and experience, be in good health at a healthy weight and have an excellent trainer. Once a person has these things, constant rigorous training is required.
Most, if not all professional boxers begin their careers as amateurs, and they have already made a name for themselves before they hit the pro circuit. Hiring a professional manager is an important step to becoming a pro and a manager can help schedule a boxer's first professional fight.
Training for a professional boxer happens outside the ring as well as inside. Dance classes like ballet can be very beneficial to fighters because it improves balance, agility and physical strength.