Final answer:
Mr. Donatelli permitted Alfred one more fight because he recognized Alfred's potential and determination to succeed in boxing, even after his prior losses.
Step-by-step explanation:
Mr. Donatelli allowed Alfred one more fight because he saw potential in Alfred's boxing abilities and character. As a seasoned trainer, Donatelli recognized that despite Alfred's previous losses, he retained the desire to improve and the executioner's drive to succeed, which is often a critical factor in the competitive world of boxing. Understanding that Alfred had not yet reached his peak, Donatelli permitted him to enter the ring once more, hoping that with the right guidance and training, Alfred would showcase his true capabilities and perhaps even secure a victory.