Undefeated strawweight Alexa Grasso will make her UFC debut in November, facing “The Ultimate Fighter 20” cast member Heather Jo Clark at UFC Fight Night in Mexico City. MMAjunkie today confirmed the booking following an initial report from Indiscutido.com . Grasso is currently sitting at No. 6 in the latest USA TODAY Sports/MMAjunkie MMA strawweight rankings . The UFC’s Mexico City “Fight Night” card will take place Nov.