Alexis Davis Brazilian jiu-jitsu black belt  Alexis Davis gained a measure of revenge against long-time rival  Sarah Kaufman with an impressive second-round submission victory on Saturday night at “UFC 186: Johnson vs. Horiguchi” in Montreal. Davis put herself right back into 135-pound title contention by finishing Kaufman with an armbar in a featured preliminary bout. Prior to Saturday’s trilogy fight, Davis (17-6 MMA, 4-1 UFC) and Kaufman (17-3 MMA, 1-1 UFC) faced off on two separate occasions