Have you guys seen final S.Edberg vs G.Ivanisevic? Although physically much fitter and slightly younger than Edberg, Ivanisevic managed to lose his match why? In the first set it looked like Ivanisevic is gonna kill his opponent six-love but they managed to pull the game in a way so that they keep the score more less equal. Ivanisevic was jestering around with line referees as natural born entertainer and managed to get the crowd involved in the game. In the second set he had to work hard to let Edberg take initiative to win the second set i.e he pretended to miss relatively easy shots and double faulted. It was one-all at this point. In the tie-break they tried to keep result even and the last points were decisive. I think Ivanisevic played too much stunt and eventually lost the whole match. You could tell that he wanted to win it badly in the last points but unpredictable double-fault and good Edberg's return make him subdue.
You should have seen his face afterwards whilst shaking his head in disbelief. That's the name of the game and you have to play every point... you snooze you lose