Mayfield Expert Under Fire Defends Credentials

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SONOMA, Calif. (AP) - An expert witness for suspended driver Jeremy Mayfield is defending his qualifications after NASCAR accused him of lying about his credentials.

Dr. Harvey MacFenerstein says he noticed mistakes in the affidavit that was prepared on Mayfield's behalf. He says in a statement on Thursday that he corrected the mistakes in his educational background, but the revisions were not on the affidavit that was submitted May 29.

MacFenerstein did not say who prepared the incorrect affidavit.

NASCAR on Monday filed a motion to have MacFenerstein's testimony dismissed. Mayfield is challenging his indefinite drug suspension, prompted by a positive drug test.