Where is the arrow?

[w_sohl]

Originally posted by Grail
Switch the arrow. A should not benefit from their own foul. The throw in has ended with A's foul.

How can you switch the arrow when you haven't even had a throw-in yet? Leave the arrow with A and give the ball to B, you are not going to double whammy A here.

This got me thinking though, what if A steped over the line and then the throw in? I guess technically the throw in still hasen't been completed so they would just lose the ball and keep the arrow. Is this correct for this sitch?