 Umar Nurmagomedov extended his unbeaten streak to 16-0 with a knockout finish over Raoni Barcelos at UFC Fight Night 217 on Saturday night at UFC Apex in Enterprise, Nev. Nurmagomedov also improved to 4-0 since signing with UFC with his knockout of Barcelos 17-4 MMA, 6-3 UFC at 4:40 of the first round. It was ... Umar Nurmagomedov extends unbeaten streak to 16-0... 