Lesnar’s attorney Howard Jacobs sent a letter to MMA Junkie to explain in full detail.
“We are still investigating this matter (which investigation includes the ongoing testing of products used by Mr. Lesnar prior to the date of the positive test). To provide further detail, I am advised that the testing laboratory (Korva Labs) initially tested an eye medication, which was negative for either clomiphene or clomiphene metabolites. Subsequent testing has been conducted on a foot cream; that testing has included three separate extraction attempts, all of which have failed. A fourth extraction attempt is being made by Korva Labs this week.
As you may be aware, testing of such creams can be a difficult process, as the extraction process can be significantly complicated by both a complex matrix and interfering substances. Until a successful extraction can be accomplished, this product cannot be tested for contamination with clomiphene or clomiphene metabolites. For this reason, the extraction failures to date provide no indication as to whether or not this cream is contaminated with clomiphene or clomiphene metabolites.”
http://mmajunkie.com/2016/10/brock-lesn ... 0-positive
The owner of Korva Labs, Paul Scott, is pretty shady. He's famous for trying to get other blatant steroid cheats (such as Floyd Landis and Anderson Silva) off the hook when they were clearly guilty. It certainly doesn't look good for Lesnar.