Paulo Costa has never done anything quietly. He did not quietly win a UFC title fight, and he did not quietly lose one either.
He has not quietly sat at middleweight and waited for the division to come to him in recent years. And now, at 34 years old, he is not quietly moving to a new weight class.
On April 11 at UFC 327 in Miami, Costa makes his official light heavyweight debut against the undefeated Russian knockout machine Azamat Murzakanov at the Kaseya Center.
He is the underdog at +158 on most sportsbooks. He is fighting a man who has never lost as a professional, is 6-0 in the UFC, and has stopped five of those six UFC opponents by knockout.
And none of that seems to bother Costa even slightly. Because the story he is building — the one that starts with beating Murzakanov and ends with a fight against Khamzat Chimaev in either one or two divisions — is the most compelling narrative he has had access to in years.
Who Is Paulo Costa and Why This Moment Matters
The Rise, the Title Shot and the Decline
Paulo Costa grew up in Contagem, Brazil, picked up Muay Thai at nine years old and built himself into one of the most physically imposing fighters the middleweight division had ever seen.
He arrived in the UFC with a finishing record that made people uncomfortable and a physique that made everything about his fighting style feel slightly dangerous to be near, even on television.
His five-fight UFC win streak was built on spectacular finishes. Uriah Hall. Johny Hendricks. Yoel Romero. Robert Whittaker. Each one emphatic.
Each one making the case that here was a man who could beat Israel Adesanya for the middleweight title and do it on the night.
Adesanya stopped him in the second round at UFC 253 in September 2020. That was the beginning of a different kind of Paulo Costa story — one defined as much by inactivity, withdrawals, and near-misses as by what actually happened in the cage.
He has fought just five times in the five years since that title loss. He has lost to Marvin Vettori, Sean Strickland and Israel Adesanya.
He pulled out of a scheduled fight against Khamzat Chimaev at UFC 294 in 2023 with an elbow injury that required surgery.
His record now stands at 15-4. He is ranked 14th at middleweight. He is not in the title conversation at that division by any normal route.
But he has never been a fighter who follows normal routes.
The Murzakanov Fight — What Costa Is Walking Into
Murzakanov’s Record and What Makes Him Dangerous
Azamat Murzakanov is 16-0 as a professional. He is 6-0 inside the UFC. He has stopped five of those six UFC opponents by knockout and holds twelve career KO wins in total.
He is a Master of Sport in Russian hand-to-hand combat, which informs the precise, patient boxing style that has made him quietly one of the most effective finishers in the 205-pound division.
He is ranked sixth at light heavyweight despite carrying almost no commercial profile. He does not spin into wheel kicks or chase Instagram highlight moments.
He waits, finds the range, and lands the punch that ends the night. It has worked sixteen times without exception.
At 36 years old, Murzakanov knows that the window for a title shot is narrow. A win over a former UFC middleweight title challenger in a co-main event spot at a major PPV would be the biggest statement of his career. He is motivated, experienced and fighting in front of a crowd that largely has no idea how good he actually is.
Costa’s Advantages in This Matchup
Costa is not walking into the dangers Murzakanov presents. He has specific tools that match up well against a southpaw boxer who relies primarily on combinations and range management.
Costa’s right kick against southpaws is one of the most underrated weapons in his game.
When he can open the angle and rip that kick into the body and head of a left-handed opponent, it works as both a scoring strike and a range disruption tool that prevents the southpaw from settling into their preferred position.
He used it to devastating effect against Yoel Romero, a man who shared many of Murzakanov’s physical approach, if not his style.
He is also fighting without the extreme weight cut that has made his preparation so problematic at middleweight.
At 34, carrying natural light heavyweight mass, simply stepping on the scale at 205 without draining himself is a physical advantage he has not had in years of competition at 185.
What Happens If Costa Wins — The Immediate Picture
He Proves the Weight Class Move Was the Right Decision
Middleweights moving to light heavyweight have historically done very well in their debut bouts.
The removal of the draining weight cut alone restores physical attributes — strength, reflexes, recovery between rounds — that a hard cut suppresses.
Costa has spoken publicly about how the decision to move up was partly driven by the realisation that the cut was affecting his performance in ways that were not immediately visible but were definitely there.
A win over a 16-0 opponent in a first light heavyweight appearance would be an extraordinary debut. It would not just mean a result on his record.
It would mean he entered a new division and immediately beat one of its most established and consistent performers.
He Enters the Top 10 at Light Heavyweight Immediately
Murzakanov is currently ranked sixth at light heavyweight. A Costa win does not automatically move Costa to sixth — rankings are about momentum and activity as much as they are about results — but it puts him inside the top ten in a division that has just crowned a new champion in the main event of the same card.
A top-ten contender who has just beaten a top-ten opponent on the same night a title changed hands is the most ideally positioned fighter available for first-defence matchmaking conversations.
He Opens the Door to Jiri Prochazka or Carlos Ulberg
Costa himself has already said publicly that Jiri Prochazka is the biggest name he could target at light heavyweight. “I think Jiri right now is the biggest name in the light heavyweight,” he told Ariel Helwani.
Prochazka and Ulberg are meeting in the main event of UFC 327 to determine who is the new light heavyweight champion.
Whoever wins that fight will need a first title defence. A newly minted light heavyweight contender who just knocked out the sixth-ranked fighter on the same card is a compelling candidate.
The Chimaev Fight — The Dream Scenario That Costa Is Building Toward
Why This Rivalry Already Has Three Years of Heat Behind It
The Costa versus Chimaev conversation is not a new one, and it is not an invented one. It is a rivalry with real, documented history, real personal animosity, and a fight that was actually booked and cancelled before it could happen.
The two were scheduled to meet at UFC 294 in Abu Dhabi in October 2023. Costa pulled out with a serious elbow injury that required surgery.
Chimaev fought Kamaru Usman instead on short notice. The fight that MMA fans had been waiting years to see never materialised — and the bad blood between the two men has done nothing but compound in the time since.
Costa has described Chimaev’s style as having “the potential to kill this business.” He has said that Chimaev is fat and does not deserve his Secret Juice supplement.
He has called himself the worst possible matchup for Chimaev and declared publicly, “I think the worst match for Chimaev is me. This needs to happen. He is my goal. I am sick of him.”
Chimaev, for his part, is now the UFC middleweight champion after dominating Dricus du Plessis at UFC 319 with the kind of pillar-to-post grappling performance that has defined his entire career.
What Costa Said About the Chimaev Fight Plan
The path Costa has laid out publicly is clear and specific. Beat Murzakanov at UFC 327. Then either return to middleweight to insert himself into the title picture against Chimaev, or wait for Chimaev to move up to light heavyweight — a scenario that is genuinely possible given Chimaev’s history of competing at multiple weights.
“I think after a good victory against Azamat on April 11, I can come back at middleweight to be in line to fight him,” Costa said on the Ariel Helwani Show. “Or I can wait for him at 205. I can fight him in both divisions.”
That is a remarkably flexible position — and it works because Costa is one of the few fighters in the world who genuinely operates across two weight classes without the distinction feeling artificial.
Why Costa vs Chimaev Would Be One of the Best Fights of 2026
The stylistic contrast between these two fighters is about as compelling as the UFC can manufacture. Chimaev dominates through grappling control — takedowns, top pressure, and the kind of clinch-and-grind approach that has suffocated every opponent he has faced. He has never been stopped as a professional.
Costa is one of the least stoppable fighters the UFC has ever seen on the feet. He has been stopped once in his professional career by Israel Adesanya at UFC 253.
He has never been knocked out cold. Against Romero, a high-level wrestler tried four or five times to keep him on the mat and could not hold him down. Costa’s view — stated explicitly — is that the same would happen against Chimaev.
“He could not hold me down. Even if he takes me down, I think he can put me down, but he cannot keep me there.”
Whether that is accurate is the fight everyone wants to find out. The forward-pressing, body-attacking Brazilian running into the grappling blitz of the best wrestler in the middleweight division is an elemental collision that the sport’s fan base has been asking for since their 2023 booking fell apart.
The Key Facts About a Potential Costa vs Chimaev Fight
- Chimaev is the reigning UFC middleweight champion with a 25-0 professional record
- Chimaev and Costa were booked for UFC 294 in 2023 before Costa’s elbow injury cancelled the fight
- Costa called the fight “my goal” and said he is “sick” of Chimaev in recent interviews
- Costa has stated he will fight Chimaev at middleweight or light heavyweight — whichever works
- Chimaev is scheduled to defend the middleweight title against Sean Strickland at UFC 328 in May
- If Chimaev wins that defence, Costa winning at UFC 327 puts him in the queue for a subsequent title shot
- Costa believes his wrestling resistance, built against elite wrestlers like Romero, would transfer directly to handling Chimaev’s grappling
The Bigger Picture — Is Paulo Costa Having a Career Renaissance?
The question hanging over everything is whether Costa’s move to light heavyweight represents a genuine second act or simply a lateral step toward obscurity in a different division.
His inactivity at middleweight has been the defining criticism of his career since the Adesanya loss.
He has pulled out of fights, appeared inconsistently, and allowed his ranking to slip from legitimate title contender to number fourteen in a division he once almost ruled.
But the specific circumstances of this move are different. He is not running from middleweight because he cannot compete there.
He is testing light heavyweight because he believes the absence of the extreme weight cut will restore the physical version of himself that the fighting world saw before 2020. He has expressed genuine enthusiasm — not resignation — about the move.
And the Chimaev target gives the whole project a direction that a straightforward grind through the light heavyweight rankings would never produce.
If Costa beats Murzakanov impressively and Chimaev defends his title against Strickland at UFC 328, the most combustible personal rivalry in the middleweight division suddenly has a clear route to resolution.
That is not a bad position for a 34-year-old fighter to be in on April 11 in Miami.
Key Facts
- Costa faces Murzakanov in his official light heavyweight debut as a co-main event at UFC 327 on April 11 in Miami.
- Murzakanov is 16-0 overall and 6-0 in the UFC with five knockout finishes in the promotion.
- Costa enters as the underdog at +158 against Murzakanov, who is a -205 favourite.
- Costa was originally ranked 14th at middleweight before the weight class move.
- The fight was elevated to co-main event after flyweight champion Joshua Van withdrew from his scheduled title defence.
- Costa’s last UFC win was a unanimous decision over Roman Kopylov at UFC 318 in July 2025.
- Costa and Chimaev were originally booked for UFC 294 in 2023 before Costa’s elbow injury cancelled the fight.
- Chimaev is scheduled to make his first middleweight title defence against Sean Strickland at UFC 328.