The fight was suspended after Anderson headbutted Nemkov, inflicting a cut on his eyebrow.
The Bellator 277 tournament takes place in San Jose (USA) at the SAC Stadium.
In the main event of the evening, American AJ McKee and Brazilian Patricio Freire will meet.
Earlier, Ramazan Emeev told what he thinks about the upcoming fight between compatriot Vadim Nemkov and American Corey Anderson.