Drug testing for the August 18 Strikeforce: Rousey vs. Kaufman event in San Diego has been classified as "invalid," the California state athletic commission (CSAC) told media members on Monday afternoon.
The commission would not comment any further, with a spokesperson saying, "we have no additional information" when asked for further details. An "invalid" test is one in which a laboratory is prevented from obtaining a valid result due to any number of circumstances surrounding it.
UFC vice president of regulatory affairs Marc Ratner on Monday told MMA Fighting that the issue was caused by a problem with either the chain of custody or the way the test was collected by CSAC's inspectors.
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