People, if a foul starts outside the box, and ends in the penalty box...it is NOT a penalty, the foul should be given where the foul started, not where the player fell.
However, that being said, it was one of the less impressive Marchisio performances in a Juve top, as he had two great chances, that had he been 100% he would have scored and not shot straight into the keeper. The pk which he gave away was just him defending lazily, though as I explained above, it should have been a free kick not a penalty, but either way fuck it...a la promissa