Everyone keeps talking about Nadal's forehand winner down 6-5 in the tiebreak being the big shift, but that seems to me to miss the real key moment. Rosol broke Nadal easily to take a 3-2 lead in the second set, then went up 4-2. He had the momentum. Nadal held, and then he broke back for 4-4. If Rosol defends his serve, he could have served it out at 5-4, but instead, Nadal grabbed momentum from the break down 3-4 with Rosol serving.