#4 UFC lightweight champion Charles Oliveira
Another fighter who has won a UFC title after years of mediocre performances in the promotion, Charles Oliveira clinched the lightweight strap with a brilliant comeback win against Michael Chandler at UFC 262 earlier this year. The Brazilian, who has unlocked his true potential since moving up to lightweight, could compete again at 145 lbs if the right opportunity presents itself.
Cutting down to featherweight took a massive toll on Oliveira's performances, and he has always maintained that he feels much better at 155 lbs. But having understood himself much better over the last few years, where he has put together an undefeated run, 'Do Bronx' admitted that he hasn't closed the door on a potential return to featherweight.
Get the latest updates on One Championship Rankings at Sportskeeda and more
“I still feel like a featherweight. If Dana White gave me the opportunity to go back to the featherweight division and win, I’d take it.”
Oliveira is one of the most well-rounded fighters on the roster and would have a significant size advantage over the others in the featherweight division. He has already suffered many losses to the weight class' best fighters, but Oliveira 2.0 could easily be a two-division champion if the solves the weight-cutting puzzle.
#3 UFC women's flyweight champion Valentina Shevchenko
A section of fans would swear that Valentina Shevchenko should've already been crowned a two-division champion.
At UFC 215 in September 2017, Amanda Nunes edged 'Bullet' in a highly controversial split decision, following up on her win at UFC 196 in March 2016. Shevchenko then moved to the UFC's new flyweight division and clinched the title, while Nunes has ruled over the bantamweight and featherweight divisions with an iron fist.
Both women have expressed an interest in the trilogy, with UFC president Dana White willing to book it for the third time as well. Shevchenko and Nunes have dominated their respective divisions over the last few years, and have very few interesting challenges in the UFC.
Can Shevchenko use her technical superiority to finally get one over Nunes, who holds a significant size and power differential? Truth be told, if anyone can dethrone 'The Lioness', it's the current UFC flyweight champion, despite the physical disparity.