Yahoo Sports. Usman Nurmagomedov's manager, Ali Abdelaziz, is embarrassed by his fighter's actions. Nurmagomedov attacked former Ultimate Fighting Championship titleholder Merab Dvalishvili in a hotel lobby in. Usman Nurmagomedov is facing criticism after footage appeared to show him attacking Merab Dvalishvili in an Abu Dhabi hotel lobby. Dvalishvili said he and Saba Lazishvili were attacked from.