PHOENIX -- Dr. J isn't a fan ... Julius Erving won the first dunk contest held during the 1976 ABA All-Star game when he threw down after taking off from the free throw line.

So Mike turned to Julius Erving's free-throw line dunk to seal the victory ... That's why MJ had a second crack at nailing Dr. J's free-throw dunk. Mike needed a second attempt, and the miss ...