The Brazilian Athletic Commission (CABMMA) announced on Friday that all fighters tested on the UFC on Fuel TV 10 fight card that took place on June 8 at the Ginásio Paulo Sarasate in Fortaleza, Brazil, returned negative test results for illegal drugs, performance enhancing drugs, stimulants and masking agents. Every fighter on the card submitted pre-fight urine samples.  Four randomly chosen fighters submitted post-fight urine samples, as well as main event fighters Antonio Rodrigo Nogueira and Fabricio Werdum . Werdum defeated Nogueira in the featured attraction by submission. Leonardo Santos became the second The Ultimate Fighter: Brazil winner by submitting William Macario in the co-main event. The card set the record for number of submission finishes on a single UFC event with eight.  The previous record was six.