@NASCAR tweets related to: Nascar, News, Jgr, Hamlin, Kyle

AVONDALE, Ariz. -- The Joe Gibbs Racing cars of Denny Hamlin and Kyle Busch had to change engines and start Sunday's Sprint Cup race at the back of the field, but Toyota officials said the motor problems were unrelated.
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NASCAR News: JGR's Hamlin, Kyle Busch change car engines http://t.co/Qbq219t5O3

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