throw-in/illegal entry/technical

[JPaco54]

Originally Posted by bob jenkins

That's not one of the options. If you stop the throw-in, then you have to let the sub in.

Why - I witnessed a game, IW, sub waiting at the table, ref did not let him enter the game, coach yelling "sub sub", ref said, "He can wait there all game if I want him too." Coach said, you blew the play dead." Ref said, doesnt matter, I can sub him when I want to." I thougth this was strange. I thought, like your statemet says, that you had to enter the sub, when you kill the play? Correct?