Wawrinka must elevate his game to beat Djokovic at U.S. Open

The winner of this rematch of the fourth round of the Australian Open advances to the U.S. Open final.

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5. He has to stay up. No player suffocates his opponent's spirit like Djokovic. Wawrinka can't let Djokovic's interminable rallies or his inventive shot making or his primal cries of self-satisfaction kill his will to win. His coach, Magnus Norman, knows a thing or two about scoring big upsets, having turned Robin Soderling into a giant slayer. (See: French Open, 2010.) Norman is going to give Wawrinka a great game plan. Wawrinka just needs to believe in it, or, failing that, keep believing in himself.