NASCAR Sprint Cup: What We Learned in Brad Keselowski’s Win at Dover

We're three races into this year's Chase for the Sprint Cup and Brad Keselowski has won two of them, thus establishing himself as a serious contender for the championship.By taking the checkers in Sunday's AAA 400 at Dover International Speedway—thanks to a gutsy fuel mileage call by crew chief Paul Wolfe—Keselowski took the points lead for the second time in the Chase, after briefly giving it up last weekend in New Hampshire. With Dodge on the way out of the sport and owner Roger Penske still never having won a Cup title, he could be on the verge of writing history for both organizations.So what did we learn at Dover about this year's title fight? There are only three drivers really left in this championship raceTheir name...

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