UFC fan here. He fought a lot of big names, hmhis Achilles heal was he would get submitted . Than he gets on all the steroids and get persona and becomes Chael as we know. Jones outwrestled him so so badly in their fight. And Rashad also took him down and than unleashes brutal Ground'pound in what was Chaels last ufc fight (the same night Hendricks was imo robbed vs GSP, and before USADA came in).
Sometimes Chael's youtube channel can be interesting, sometimes groaning and he has a reputation for wrong takes on predictions, scorecards, or state of fighters like Conor being able to make a good comeback for example, or he thought Topuria had very little chance vs Holloway.