1.   A once-formidable serve might have a lower mph and a little more spin.

2.   But his serve no longer has much sting, his volleys are no longer free of the yips and his confidence is clearly suffering.

3.   How many million serves had this American struck in his life?

4.   His serve had more of an edge to it, and his volleys were crisper.

5.   His volleys enjoyed joystick-controlled precision and his serve had great movement.

6.   He was serving big, and his second serve had a lot of pop on it.