Following Strikeforce’s Rousey vs. Kaufman card on Aug. 18th, the California State Athletic Comission (CSAC) handled their usual review process of the fighters urine samples. Oddly though, this time it wasn’t the same. It seems the CSAC is now reporting ‘invalid results’ across the board. Basically what this means is that the labs were unable to come up with a negative or positive result on the taken samples from the athletes.

UFC vice president of regulatory affairs Marc Ratner (formerly exec of NSAC) is currently stating that the issue was caused by a problem with either the chain of custody or in the manner the test was collected by CSAC’s inspectors. As of now the assumption is that it was likely a fumble in the collection of the tests itself from the inspectors.

It was stated by CSAC officials however that all fighters did give samples in a proper fashion. At this time no foul play is expected to be involved.

No word from the commission if they will be giving any further details or any investigation into the cause, as they abruptly stopped the questions by saying they have no more information at this time.