Heredia is a fat f*ck, Fedosov by early KO. This is a guy who ballooned up 60 pounds (228 to 288 pounds) in only 2 months.
Most UN-likely You should read about Russian "influence" on doping laboratories I am from a country where vintersports rule. European newspapers wites on regular basis about East european ability to let hundreds of samples dissapear or change results. A story from last year. The african top leader og athletics (you know the men and woman that run) had 11 tests that were positiv and would change the resultat-list and medal-list drastically. So he contacted Putin and the problem was solved.
Yes,at the start,I thought it was Bryan but then,I watched Ochieng/Miller,that Briggs sparring partner fights just like Miller,hands are the same even,voice and at that time Miler,Bryan,Sherman Williams and few others was there,but only Miller and Bryan from those have similiar height to Briggs.Also,Miller packs tummy and isn't a fastest fighter,as seen in other video,https://www.instagram.com/explore/locations/934727899/?hl=en,sixth video from the start of the page.