Sepehr Heydari is a retired Iranian football defender. He has a bachelor of Mechanical engineering from Najaf Abad Azad University.1. Competition: There are thousands of talented players competing for a limited number of spots on professional teams. This makes it extremely difficult to stand out and secure a contract. 2. Physical demands: Professional football requires a high level of physical fitness, endurance, strength, and skill. Players must constantly train and improve their abilities to compete at an elite level.