Defense reaching through plane on throw in.

[BillyMac]

The defender may not break the imaginary plane during a throwin. If the defender breaks the imaginary plane during a throwin, the defender’s team will receive a team warning, or if the team has already been warned for one of the four delay situations, this action would result in a team technical foul. If the defender contacts the ball after breaking the imaginary plane, it is a player technical foul and a team warning will be recorded. If the defender fouls the inbounding player after breaking the imaginary plane, it is an intentional personal foul, and a team warning will be recorded.