NRL star Arrow retires at 30 after MND diagnosis

"Further tests, specialist reviews and medical processes are still ongoing, and my doctors are continuing to assess my condition. "On medical advice, I am not currently medically cleared to train or play at the required level, and I will be stepping away from those duties while I focus fully on my health, treatment, and rehabilitation." MND affects nerves in the brain and spinal cord, which tell your muscles what to do. …