Subs

[wbrown]

This was posted in a local chapter bulletin.

A1 fouls B1 resulting in two free throws for B1. The coach of Team A subs A6 for A1 at the 6:06 mark of the second quarter. The official waves A6 into the game. B1 shoots the first of two free throws. Head coach of Team A sends A1 back to the table to report back into the game. The officials will not allow A1 back into the game citing that no time has come off the clock, it still reads 6:06. The coach indicates that the ball became alive when B1 was handed the ball and therefore A1 should be allowed back into the game.

My question is why would the ref wave on A6 before the first shot?