What is the fine-grained topic of the following text: The Russian fighter of the mixed style (MMA) Habib Nurmagomedov has demanded from the head of the Absolute combative championship (UFC) Deyna of Whyte to give him a champion belt after the victory over Irish Conor McGregor. Only return the topic.
Habib Nurmagomedov's demand for a champion belt after victory over Conor McGregor in UFC.