What is the fine-grained topic of the following text: The play ranks not just as one of Erving's three most famous -- along with his free-throw-line dunk in the 1976 ABA All-Star Game in Denver and his soaring rim attack and "cradle dunk" in the 1983 Finals -- but as another milestone in the mid-air majesty "Dr. J" brought to the league. Only return the topic.
Erving's most famous basketball plays