I turned on this match after the first set and saw Mardy look like a centipede in sand. He is not as quick as many of the players on tour including Djokovic. Novak got a break to go up 4 to 2 in the second set and looked like the day was over. Then Mardy broke back immediately and began to rush the net on his serve. The change in tactics seemed to improve Mardys serve some.
The 3rd set started with Novak serving. He got behind love 40 and responded with 3 straight aces, a service winner, and a rally winner. Now Novak is up 3 to 0.