I need help to understand this.
2007-08 CASE BOOK 10.6.1 SITUATION A:
B1 takes a certain spot on the court before A1 jumps in the air to catch a pass: (a) A1 lands on B1; or (b) B1 moves to a new spot while A1 is airborne. A1 lands one foot and then charges into B1.
RULING: In (a) and (b), the foul is on A1. (4-23-5d)
2007-08 RULE BOOK
4-23-5d: If the opponent is air borne, the guard must have obtained legal position before the opponent left the floor.