Vid request: Duke vs Army - shooter loses control and touches again

[Paintguru]

Originally Posted by BillyMac

When an airborne player keeps control of an attempted shot that is blocked, is unable to release the ball, and returns to the floor with it, that player has not traveled; it is a held ball.

This came up at our association meeting last night and the instructor posed the question of when this becomes a held ball. He contended that it was when the upward momentum of the shooter has been stopped by the opponents hand on the ball. What is the consensus here? Does the defender have to have his hand on the ball until the shooter returns to the floor? Until his upward momentum stops?