Russia's lightweight world champion Khabib Nurmagomedov, who was undefeated in mixed martial arts, has announced his retirement.
Khabib defeated Justin Gathage of the United States in his last fight, he remained undefeated for 12 years, his opponents had to give up one after another.
In the last battle in Abu Dhabi, Khabib also defeated his American rival Justin Gathage in the second round.
Khabib fought 29 fights in his career and won every match. After remaining unbeaten in the last match, Khabib announced his retirement.
Khabib, who hails from Russia, made his debut in mixed martial arts in 2008. From the beginning of his career, Khabib could not be defeated.
Khabib also faced McGregor in 2018. This match was also won by Khabib.