【How-to】Why did lebron wear 6

Each player wears a different number. In American high school and college basketball the only legal numbers are 0 or 00 (but not both may be worn),1 , 2, 3, 4, 5, 10, 11, 12, 13, 14, 15, 20, 21, 22, 23, 24 ,25, 30, 31, 32, 33, 34, 35, 40, 41, 42, 43, 44, 45, 50, 51, 52, 53, 54, and 55.