In a stunning display of unsportsmanlike conduct, flyweight  Igor Severino was disqualified during his UFC Vegas 89 bout against  Andre Lima after biting him.   Midway through the second round, Severino bit Lima in the arm while Lima was attempting to take him down.  Referee Chris Tognoni halted the fight and called in a doctor to check Lima before disqualifying Severino.  The bite marks were clearly visible during Lima’s post-fight interview.   “Those were two up-and-coming undefeated fighters,” UFC CEO Dana White  told Kevin Iole . “If you get frustrated and want out of the fight, there are plenty of ways to do it, but the worst thing u can do is bite your opponent.