Will Cinderella Turn into a Pumpkin?

I think we can all agree that Novak Djokovic has had a magical season this year. At 70-4 with almost $11 million in the bank, it is definitely one of the greatest seasons in the history of our sport. That being said, he clearly did not look right last week when he lost in 3 sets to Kei Nishikori, including getting bageled in the third set. With the exception of the Federer loss at the French, 3 of his losses this season have been tied to injury. He has an insurmountable point lead with only Paris and London left on the schedule. Do you think he should shut it down for the year, protect his stellar record and get healthy for 2012? Or should he try to summon what's left in the tank and play those tournaments regardless of the results? Sound off in the comments section with your answers!

"I hate to lose more than I love to win." - Jimmy Connors