Polyana Viana Beats Thief Who Wanted To Rob Her A UFC fighter Polyana Viana waiting for an Uber in Rio de Janeiro may have appeared an easy target to a would-be thief, but he obviously miscalculated. The only problem for the perpetrator was his target was a strawweight UFC fighter, who turned the tables on the thief with punches, a kick and a "rear-naked choke" before forcing him to sit and wait for the police. Mixed martial arts (MMA) fighter Polyana Viana, nicknamed "the Iron Lady", told website MMA Junkie the thief used a fake gun to try and steal her mobile phone while she waited outside her apartment block on Saturday night. "When he saw I saw him, he sat next to me," Viana said. "He asked me the time, I said it, and I saw he wasn't going to leave. So I already moved to put my cell phone in my waist. "And then he said, 'Give me the phone. Don't try to react, because I'm armed.' Then he put his hand over [a gun...