IS JIMMIE JOHNSON UNSTOPPABLE?

 This time of year Jimmie Johnson, NASCAR's four-time champion, turns into an unstoppable force of nature.  Be it because of his his self-help DVD or his uncomfortably placed golden horseshoe, the 48 team knows who to steer into Victory Lane.This year Johnson has snuck into the Chase for the Cup with little fanfare.  He garnered fleeting mention over that last two months due to poor finishes (only three top 10 finishes since June 27th), but Johnson starts the Chase in second place ...

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