Ketlen Vieira Receives Six-Month Suspension Following Failed Drug Test

Mike Mazzulli, director of the Mohegan Tribe Department of Athletic Regulation, confirmed that both the A and B samples provided by Ketlen Vieira returned positive results for a substance prohibited by the World Anti-Doping Agency. The testing was conducted in-competition at PFL Tampa on August 22, 2026.

Vieira entered the matchup against Cris Cyborg following her departure from the UFC, where she accumulated a 10-5 record. The August contest, which resulted in a unanimous decision loss for Vieira, was originally scheduled as a title fight before she missed the featherweight limit by 7.2 pounds. Cris Cyborg expressed support for the regulatory enforcement following the disclosure of the testing results.