Question: When was the undefeated Russian mixed martial artist of Avar heritage born who was a MMA star and trains with Magomedrasul Mukhtarovich Gazimagomedov?
Sentence (from "Khabib Nurmagomedov"): Khabib Abdulmanapovich Nurmagomedov (Russian: Хабиб Абдулманапович Нурмагомедов ; Avar: ХIабиб ГӀабдулманапил НурмухӀамадов ; born September 20, 1988) is an undefeated Russian mixed martial artist of Avar heritage.
Relevant evidence: Yes