#2. Khamzat Chimaev - UFC welterweight

Few have ever climbed the ranks in the UFC as quickly as Khamzat Chimaev. The Swedish fighter's rise to the top of the welterweight division has been truly meteoric and he may not be done just yet. With his record a perfect 11-0 thus far, he has already established himself as a top-five welterweight on the planet.
Chimaev was met by some criticism after his latest performance, which saw him defeat Gilbert Burns. This was the first time that the Chechen-born Swede had been met with any real resistance in his career, which may have cooled some of the hype around him.
Get the latest updates on One Championship Rankings at Sportskeeda and more
However, the result was incredibly impressive and he may still be getting better.
Chimaev is just 28 and is at most just one fight away from a title shot. He is yet to taste defeat and has made some very talented fighters look lackluster. If he continues to improve and is able to win gold one day, he may very well become one of the biggest stars the sport has ever seen.
#1. Charles Oliveira - UFC lightweight

Heading into last weekend's event, Charles Oliveira was the UFC lightweight champion. He won his fight on Saturday but missed weight on the Friday, which led to him being stripped of his championship gold. While he may no longer officially be the champion, he is easily the closest to that status of any non-champion on the roster.
Oliveira has looked sensational recently and is currently riding an 11-fight winning streak. While early in his career he struggled with consistency and bounced between divisions, he has now found a home at 155 pounds. His last three performances, in particular, have been truly sensational.
Oliveira has finished three of the best lightweights on the planet in his last three fights. He defeated Michael Chandler to win gold, defended his belt against Dustin Poirier and then scored a first-round submission of Justin Gaethje on Saturday. Even without a title, he is the clear king of the 155-pound division.