If Brock Lesnar is up to something fishy, the United States Anti-Doping Association is going to find out about it.

A report by MMA Fighting mentioned that the WWE Superstar and former UFC Champion has been tested five times since being entered into the program just two weeks ago. The results of the tests have not been concluded yet.

Lesnar was granted a special exemption from the USADA policy that allowed him to return to the UFC without the standard four-month waiting period. Lesnar wasn't a part of the UFC when they adopted the policy, so he was treated as a 'new fighter,' BJ Penn was also granted this exemption.

Lesnar faces Mark Hunt in the co-main event of UFC 200.

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