Khabib Nurmagomedov defeated Justin Gaethje by submission with a triangle choke in the 2nd round to remain undefeated at 29-0.
After the fight, Khabib officially announced that he has had his last professional fight and will retire from the sport. There is speculation that Khabib Nurmagomedov might be the best UFC fighter ever.
source https://www.offsports.xyz/2020/10/khabib-defeats-gaethje-by-submission.html