He enjoyed a good start Sunday and broke Nadal's first service game with a forehand winner before holding serve to love.
"He not only teaches about tennis, not only about technique, " explained Li, though he has helped adjust her serve and forehand.
Djokovic hit consecutive forehand errors to lose serve and fall behind 3-2, the start of a stretch where Haas won six consecutive games.
His serve and forehand let him down against Berdych, however.
Roddick's blistering serve and forehand saw him dominate from the outset and when Sanchez took time out at 5-2 down to have a blister on his foot dressed the match was all but over.
At the moment, the racket's technology can identify the type of shot a player hits (forehand, backhand, serve), the kind of spin a player imparts on the ball and the power of a swing.
Robson was not done, however, and two searing forehand winners helped her break serve before she raced through a service game to level at 5-5.
Jankovic showed her class to move ahead with two aces in a row but Robson thrilled the home crowd by fending off two match points with a heavy serve and a big forehand.
The second set was an even quicker affair, Federer forcing Becker into a wild forehand to break the German's serve again in the third game of the second set.
Nadal looks slimmer than before, and his powerful forehand appeared to be recovering faster than his serve and backhand.
But Murray clearly had other ideas and fought back aggressively to deuce before breaking serve when Garcia-Lopez clipped a forehand into the tramlines.
The Australian, however, finally began to get the upper hand as the set progressed and Ferreira missed two easy forehand volleys in the 10th game to lose his serve.
At 4-3 up, Federer cranked up the pressure and although Soderling held serve with a thunderous inside-out forehand winner, the 6ft 4in right-hander was barely given a sniff in game nine.
With Federer serving for the set at 5-3, a superb forehand down the line by Rusedski broke the Federer serve for the first time and brought the Britons back to 5-4.
Golding saved three break points at 2-2 before seizing his single opportunity on the Olivo serve at 5-4, whipping a forehand winner past his opponent to the delight of the large Court 12 crowd.
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His forehand carried the day (he hit 12 forehand winners) and he won 68% of points on his serve.
However, Safin was a different player after the restart, mixing things up behind his serve and breaking Lopez twice as the Spaniard's forehand began to malfunction.
But serve it out he did, as Murray sent a tired forehand long on match point.
That one point never arrived as Nadal played his most brilliant tennis of the evening: forehand winner, service winner, backhand winner, ace and a strong serve to finish off the game.
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French Open champion Kuznetsova visibly tired in the decider, as both players struggled to hold serve, but she saved two match-points before hitting a forehand wide.
The 23-year-old then had two match points on Ilhan's serve, but the first was saved after the Briton's forehand was too long before the Turk saved the second with an ace.
However, the errors crept in for Montanes and a forehand winner from Murray at break point proved decisive and got the match back on serve.
But the Briton took the next four points, gaining a crucial one on the Frenchman's serve when he was quick to react to a drop shot and steer a forehand winner cross court.
But after a break of serve apiece, Nalbandian dominated the tie-break and took it with a sweeping forehand pass.
The Italian continued to take advantage of her opponent's unforced errors to start the second set with a break, and she broke the Williams serve a second time in the decisive game, sealing victory after 85 minutes with a forehand winner.
He generally prefers to hit his first serve to his opponent's backhand, but against Djokovic he is serving the majority to the forehand.
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Although Ilhan broke back, Ward broke once again and then held serve before sealing victory in the seventh game when he forced Ilhan into making an error on his forehand.
Serve dominated the opening five games before the former world number one broke Murray when the Scot overhit a forehand to take a 4-2 lead.
And the same patient baseline approach drew another break of serve in game four of the third set, before the match was wrapped up when Youzhny put a forehand long.
She broke the Croatian's serve again in the third game of the second set before wrapping up the match when Kostanic sent a forehand long on the first match point.
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