mick wroteAnd why is A2 not a defensive player before he catches the ball and is allowed to land?
Mick:
Whether A2 is a defensive player or not is not germane to the play. The jump ball ended when B2 touched the ball, therefore the exception to the rule is not longer in effect. See the rule references in the P.S.
MTD, Sr.
P.S.:
NFHS R4-S28-A3: "The jump ball begins when the ball leaves the refereeβs hand(s) and ends when the touched ball contacts a nonjumper, the floor, a basket or backboard."
NFHS R9-S9-A3: "A player from the team not in control (defensive player or during a jump ball or throw-in) may legally jump from his/her frontcourt, secure control of the ball with both feet off the floor and return to the floor with one or both feet in the backcourt. The player may make a normal landing and it makes no difference whether the first foot down is in the frontcourt or backcourt."