Person attributes
Other attributes
Mixed martial arts career
Romanov signed with the UFC on October 3, 2019, and was later scheduled to make his debut against Raphael Pessoa on April 25, 2020. However, the event was subsequently cancelled due to the COVID-19 pandemic.
Romanov was then slated to face Marcin Tybura on July 12, 2020, at UFC 251. However, Romanov was removed from the card on July 1, due to a positive COVID-19 test. He was then scheduled to face Marcos Rogério de Lima on September 5, 2020, at UFC Fight Night: Overeem vs. Sakai, but the bout was scratched the day of the event when Lima tested positive for COVID-19.
Romanov eventually made his debut on September 12, 2020, at UFC Fight Night: Waterson vs. Hill, when he defeated Roque Martinez via arm-triangle choke in the second round.
Next, he faced Marcos Rogério de Lima on November 7, 2020, at UFC on ESPN: Santos vs. Teixeira. He defeated Lima with the first forearm choke in UFC history, on the first round, to claim Performance of the Night honors.
Romanov faced Juan Espino on April 17, 2021, at UFC on ESPN: Whittaker vs. Gastelum. During the beginning of the third round, Espino accidentally connected with a knee to the groin of Romanov, who could not continue. Romanov was declared the winner via technical split decision. 6 out of 8 media scores gave it to Espino, with the other two declaring it a Draw.
Romanov faced Jared Vanderaa on October 9, 2021, at UFC Fight Night: Dern vs. Rodriguez. He won the fight via technical knockout in round two.
Romanov was next expected to face Ilir Latifi at UFC Fight Night 202 on February 19, 2022. However, the bout was cancelled for undisclosed reasons.

