Is it legal for a shot to be blocked after a foul has been called?

[Camron Rust]

Originally Posted by bob jenkins

And, if the foul is before the habitual motion, the ball is dead, so it's not a try, and it's legal to "block" the ball.

I suppose one can certainly come up with some "unsporting" scenario surrounding this, but that's an entirely different set of rules involved.

I can't think of any way to get to an unsporting act just for blocking the shot after the whistle that would otherwise be legal. The defense gets to play defense as long as the ball is live. The only way I'd have anything is if there were specific infractions committed in the process of blocking the shot independent of the whistle.