Count the basket?

[Adam]

Originally Posted by rbruno

My language didn't really describe what I saw, I think. I believe A-2 was trying to screen B-1 from behind to protect the shooter at the top of the key. I saw him push B-1 and hence the whistle. Actually it is a mechanics problem also as I was trying to keep my eyes on the shooter until he returned to the floor and the fouling action was there also but not against the shooter. I would expect that my partner could have helped there but he didn't so there was confusion by both teams as to who the foul was on A-2 or B-1.

As BNR alludes to, the question that matters here is whether the shot had been released by the time A2 committed the foul. Pay no attention to the timing of the whistle.