Doctor: Substance revealed to Mayfield

The administrator of NASCAR's drug-testing program said Monday he personally told Jeremy Mayfield what banned substance was found in his positive test. Dr. David Black, CEO of Aegis Sciences Corp., which runs the testing program, said he specifically identified the drug in several conversations with the Sprint Cup driver over a three-day period after NASCAR suspended him. "I spoke with him about his positive test result on the day he was suspended, and I spoke to him directly about the test result," Black told The Associated Press. "Yes, by name of what he tested positive for." On Saturday, Mayfield said he was never told what drug caused the positive test and has yet to receive a copy of the results. Black said he was not sure if Mayfield has seen the test results because a copy would be issued by NASCAR, not Aegis. NASCAR spokesman Ramsey Poston said he was not aware of any request by Mayfield to obtain the results. "We'd be happy to provide one if he wants it," Poston said. "We've done this in the past upon request for those who tested positive." Mayfield maintains the use of a prescription drug with over-the-counter allergy medication Claritin-D led to his positive result. Black has repeatedly rejected that explanation. Associated Press