Video: Khamzat Chimaev Scuffles with Abubakar Nurmagomedov at UFC 280
There appears to be bad blood between Khamzat Chimaev and the Khabib Nurmagomedov camp.
https://www.sherdog.com/news/news/Video-Khamzat-Chimaev-Scuffles-with-Abubakar-Nurmagomedov-at-UFC-280-188272
