I seen how they did this and the mike vick commercial (spoiler warning...) Its the same as those Jet Li flicks and matrix stuff. They use the wires and stuff to pull the ball up out of his hands, but he shoots it so it goes in the right direction. Then on the other end of the court there is a second ball that is wired down in the net with the same arch as what his shot (if possible) would have been. I would explain in more depth, but that was prolly already over your head.

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