Although Charles Oliveira is the current UFC lightweight champion, Dustin Poirier anointed himself the “undisputed world champion.” Poirier is coming off of back-to-back knockout wins over Conor McGregor and is considered by many to be the No. 1 lightweight in the world right now. The problem is, he’s not the champion, it’s Oliveira, who defeated … Continue reading Dustin Poirier anoints himself the “undisputed world champion”