Ahead of UFC 280: Oliveira vs. Makhachev, Sean O'Malley's coach, Tim Welch, speaks to Submission Radio about Sean O'Malley vs. Petr Yan at UFC 280, why they accepted this fight, the step up in competition and the notion that it's a mismatch, the biggest thing people misunderstand about Sean's style, why the fight being three rounds is such a factor, the narrative after this fight, seeing Marlon Vera again, Sean moving up to 145, Aljemain Sterling vs. TJ Dillashaw, and more!