FAMOUS BUBBLES TAKE ON THE BUBBLE BOYS

 This weekend is the final race for the Chase and several drivers are stuck on the bubble.  Matt Kenseth and Greg Biffle appear vulnerable to the charging Brian Vickers and Kyle Busch.  Could Busch lead the Sprint Cup in wins (four wins - tied with Mark Martin), but miss the Chase?  Can Kenseth hang onto the 12th spot?  Which of the top 12 drivers are vulnerable this weekend?To answer these important questions about NASCAR's Bubble Boys, several other famous bubbles weig ...

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