"Dr. J." will operate on the basketball court for you

Once upon a time (when I was a little boy), doctors would come to your house to visit you if you were ill. Many years later, another man who was called "Dr." came to visit a lot of places, and he did some things that made people feel much better. He was 6'7" and had hands the size of a pizza (yes, he did). And he could jump too. He was Julius Irving, also known as "Dr. J."