He initially tested positive for testosterone after targeted testing triggered by a whistleblower. He was also caught tampering with the initial investigation, but received a significantly reduced ban (21 months) by admitting guilt and "providing important substantial assistance" to USADA's investigation. However, while the investigation was ongoing, he then had three whereabouts failures which increased his ban to 45 months. On this case, USADA head Travis Tygart said, "This investigation has already resulted in several impactful outcomes which will be announced at a later date."