NASCAR says Mayfield lied to federal court

CHARLOTTE, N.C. -- NASCAR says Jeremy Mayfield lied to a federal court about the chronology of a second random drug test.

The accusation came Monday in court filings that ask U.S. District Court Judge Graham Mullen to lift the injunction he granted Mayfield so he could return to racing.

NASCAR questioned Mayfield's sworn testimony last week when he said a July 6 request for a second drug test went to voicemail and he didn't get the message until 40 minutes later. NASCAR says it has a recording of the actual phone call.

An appeals court last week issued a ruling hat put Mayfield back under suspension, but there are still unresolved legal challenges before Mullen.