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 "Magomedrasul Gazimagomedov"): In the quarterfinals match he beat to World Champion Khetag Tsabolov of North Ossetia–Alania.
Relevant evidence: No