Islam Makhachev confirmed himself as the undisputed lightweight champion of the world after beating Charles Oliveira by submission in the second round at UFC 280 in Abu Dhabi on Saturday.

The finish from Makhachev (23-1) came at 3:16 in the second round with an arm triangle choke, ending Oliveira's 11-fight win streak.

Makhachev celebrated with revered former lightweight champion Khabib Nurmagomedov, who lifted him into the air. The victory was Makhachev's fifth straight win by submission.

The Russian's ground game combined with his skill and physicality was where he was dominant, despite Oliveira being aggressive on the feet.

Makhachev took down Oliveira twice from three attempts in a fight that barely lasted eight minutes, with the Russian dictating most of it.

"I knew this wouldn't be an easy fight. This guy always pushes," said Makhachev, who was practically preordained as part of 'father's plan' as the heir to Nurmagomedov's throne by his late father Abdulmanap, who coached him until his death in 2020.

"I just want to say, this is my belt for coach Abdulmanap. Many years ago, he told me to train hard and you're going to be champion."

Makhachev's probable next fight will be against UFC featherweight champion Alex Volkanovski, likely in February at UFC 284. Volkanovski, who was in attendance in Abu Dhabi, said "let's do it".

In the fight of the night, rising star Sean O'Malley defeated Petr Yan by a controversial split decision after three rounds in the bantamweight division. Yan completed six of 13 takedowns and had 97 strikes, but O'Malley's were more significant.

Aljamain Sterling retained the bantamweight title after beating former champion T.J. Dillashaw by TKO at 3:44 in the second round. Dillashaw was not aided by a first-round shoulder dislocation.

Dillashaw revealed after the fight he had popped his shoulder 20 times in training and UFC boss Dana White defended the decision to allow him to fight, when he said: "I had no idea. That's a problem. How could the Athletic Commission know if he doesn't tell us. It's not like he came in out of shape or looked injured... that's something he should have told us."

After years of fighting for yards in the NFL, former running back Le’Veon Bell is scheduled to make his professional boxing debut against ex-UFC fighter Uriah Hall on the Jake Paul-Anderson Silva undercard on October 29. 

Bell, a two-time first-team All-Pro and three-time Pro Bowl selection who ran for 6,554 yards in 96 games over an eight-year NFL career, will enter the four-round bout in Glendale, Arizona after recording a knockout of fellow former NFL running back Adrian Peterson in the fifth round of an exhibition on September 10. 

"As soon as Most Valuable Promotions approached me about joining the Paul-Silva pay-per-view, I told them I want in and didn't care who the opponent was," the 30-year-old Bell said. 

"Uriah Hall is going to feel my punching power and tap out like he's getting submitted. He is not built like me." 

Hall, 38, spent nine years in the UFC before announcing his retirement from mixed martial arts in August after his second straight loss. This will also be his professional boxing debut. 

Hall finished with a 17-11 record in MMA, and his eight knockouts/technical knockouts matched Anderson Silva and Thiago Silva for the most in UFC middleweight history. 

"Le'Veon Bell, I hope you bring your best," Hall said. "I know I will." 

Jamaican mixed martial artist Randy Brown secured a unanimous decision win over Brazilian veteran Francisco Trinaldo at UFC Fight Night: Dern vs Yan in Las Vegas on Saturday.

Trinaldo, 44, went into the fight with a 28-8 record in MMA and 18-7 in the UFC, including wins in his last two outings.

“Trinaldo was a heck of a test. I don’t think that was my best work. I know my coaches know that and I think the fans watching at home know it as well,” he said in the post-fight interview.

“I’m excited. He was a true veteran, absolute honor to just get in there and mix it up with him. I definitely felt that experience in there so much love to Trinaldo and I appreciate that,” he added.

Brown, 32, is now 16-4 in his MMA career (9-4 in the UFC) and has four wins in a row in a loaded welterweight division and made it known where his focus is going forward.

“It doesn’t really matter to me to be honest, I’m ready. I want to just bounce back in and get one more for the year. I just want to keep moving forward and keep running it up and getting cheques. That’s what it’s about. I want to take care of my family and leave a legacy,” he said.

UFC chief Dana White has pushed back on suggestions this week's UFC media and fan blackout is due to Facebook founder Mark Zuckerberg as "total bulls***."

This weekend's Fight Night encounter between Mackenzie Dern and Yan Xiaonan will be closed to in-person attendance and coverage at the UFC Apex in Nevada.

Speaking at the event's media day, the former stated that attendance was a no-show as Zuckerberg had asked to rent the full venue for the event.

But White has now sought to shut down the claims, stating that the businessman, now chief executive officer and chairman of Meta, has not requested any such thing

"Mark Zuckerberg did NOT rent out the UFC Apex," he wrote on a post to social media. "That’s total bulls***."

Dern is looking for a 13th career victory in 15 bouts after bouncing back to winning ways with a split decision triumph over Tecia Torres in April.

Conor McGregor is "not interested" in a rematch with Floyd Mayweather despite the American suggesting they were set to fight next year.

Mayweather stopped McGregor in the 10th round of the final fight of his professional career in August 2017.

The 45-year-old has competed in three exhibition bouts since then and will take on Mikuru Asakura in another this weekend.

Mayweather revealed on Wednesday talks were at an advanced stage with McGregor over a fight in 2023, with a decision still to be made on whether it would be an exhibition or "a real fight".

But Irishman McGregor took to social media later in the day, posting an image of their first fight with the caption: "#notinterested".

Speaking to the Daily Mail, Mayweather had said: "I want to go out there this weekend and have fun. Then I have another exhibition Dubai in November [against British YouTube star Deji] and me and Conor McGregor in 2023.

"We don't know if it's going to be an exhibition or a real fight. But there's been talks of both. I would prefer an exhibition.

"I am not into fights where I am going to take any real punishment. 

"So, guys like Conor McGregor and guys that don't really hit hard, such as YouTubers or UFC guys, I don't really mind colliding with those kinds of individuals.

"But nothing where I am going to put myself in a position where I am going to harm myself or hurt myself."

Raul Rosas Jr., the UFC's new youngest fighter, has outlined his aim to become a champion by the time he is 20.

The Mexican bantamweight fighter is only 17 but defeated Mando Gutierrez by unanimous decision on Dana White's Contender Series on Tuesday.

Rosas was offered a deal by White before the end of the show to make him the youngest contracted fighter in the UFC's history.

And speaking afterwards, Rosas revealed his intention to secure a belt as soon as possible.

"I'm the new king in here, so I'm coming for that belt now," he said. "Respect to everybody, but I'm going to be champion when I'm 20, or even earlier. Nobody is going to stop me."

The youngest UFC champion to date is legendary light-heavyweight fighter Jon Jones, who captured his belt in 2011, aged 23, when he defeated Brazilian Mauricio Rua by technical knockout.

Rosas could also become the youngest person to fight in the UFC should he compete in the next 216 days, taking that record from Dan Lauzon (18 years, 198 days).

It seems the teenager has no plays to slow any time soon, adding: "I'm ready to fight every week, every month – all gas, no breaks.

"I'll rest when I'm retired, when I'm old, but right now we are just getting started."

Rosas is unbeaten in his six professional fights so far, with his debut bout only taking place in November last year. His bout on Tuesday was his first to go the distance, with all previous bouts finishing via submission or TKO.

White, the UFC president, was certainly enthused by what he saw.

"I've never seen anything like it," he said. "He's absolutely, positively talented. He's special, he's different."

Nate Diaz has delivered a perfect finale after defeating Tony Ferguson by submission with a guillotine choke in the fourth round in their welterweight bout at UFC 279 on Saturday.

Diaz, 37, closed out his UFC contract with Ferguson tapping out at the 2:52 mark of the fourth round in an entertaining and also bizarre fight in Las Vegas.

During the third round, Diaz appeared unwilling to engage and turned his back to his opponent, shaking his head while walking around the cage.

That was after a tight first two rounds, before Ferguson had beaten up Diaz's leg by kicks, but the Californian would resume hostilities, landing several blows in the lead-up to the decisive fourth round.

Diaz had trapped Ferguson against the fence, with the latter escaping. But Diaz dropped Ferguson to the canvas when he came forward next, securing the submission.

The win ends Diaz's association with the UFC for now at 22-13, having been in the promotion since 2007.

"At the end of the day I love the UFC," he said inside the octagon after the bout. "I feel like I've had the longest career in the UFC, and I've had the most successful one."

There has been speculation about Diaz's next move, with a potential trilogy fight with Conor McGregor. Diaz offered an insight into his plans, while taking a pot shot at McGregor.

"I want to get out of the UFC for a minute and show al these UFC fighters how to take over and own up another sport how you're supposed to do it because Conor McGregor didn’t know how to do it," he said. "None of these other fighters know how to do it.

"I'm going to go out there and take over another profession and become the best at that. Show everybody I'm the best at that. Then I'm going to be back here to get another UFC title."

Meanwhile, Diaz's original opponent Khamzat Chimaev defeated Kevin Holland by submission in the first round with a d'Arce choke.

Chimaev forced a late shuffling of the cards after missing weight by 7.5 pounds, but made light work of Holland who submitted at 2:13 in the opening round.

Daniel Rodriguez defeated Li Jingliang by split decision while Irene Aldana landed an upkick from her back to beat Macy Chiasson by TKO.

Conor McGregor is confident he will get his trilogy fight against Nate Diaz as he congratulated his old rival on reaching the end of his UFC contract.

Diaz is set to enter free agency after Saturday's UFC 279, where he is now to face Tony Ferguson following a late change.

The American has been fighting exclusively in the UFC since 2007, with the highlight of his career a pair of bouts against McGregor, which the pair split.

Diaz dealt McGregor his first UFC defeat in March 2016, before the Irishman gained revenge via a majority decision in August of the same year.

There has long been talk of the possibility of a third fight between the pair, and Diaz this week told Inside Fighting it is "for sure going to happen at some point".

McGregor appears to be of the same belief, posting on Twitter: "Congrats Nate Diaz on making it to the end of his contractual obligations with the UFC, and as a bona fide superstar goer.

"An incredible feat. Fair play. Our trilogy will happen."

Diaz is facing Ferguson this weekend after original opponent Khamzat Chimaev's failure to make weight prompted a late shake-up at UFC 279.

Chimaev will instead face Kevin Holland, leaving Li Jingliang – Ferguson's planned opponent at 170lbs – the task of taking on Daniel Rodriguez, who is Holland's opponent at 180lbs.

McGregor also weighed in on this drama, writing: "My opinion is they should have pulled Khamzat from the card entirely.

"Reconfiguring bouts, and with a more favourable bout for the failed cutter, will only make many others in the game follow suit. The smirks on the scale were enough for me. Pull from the card and starve."

One of the most chaotic lead-ups to a UFC pay-per-view card culminated with the three top-billed fights all swapping opponents, with Nate Diaz now facing Tony Ferguson in the main event of UFC 279 on Saturday night.

UFC president Dana White already had called it an unprecedented situation when he was forced to cancel the traditional fighters' press conference on Thursday due to an uncontrollable brawl backstage between multiple fighters and their entourages, before further shenanigans took place at the weigh-ins.

Needing to weigh within one pound of the 170lbs welterweight limit, Khamzat Chimaev – in his first main event – came in at a staggering 178.5lbs, missing weight by seven-and-a-half pounds. 

While fighters are given an extra hour to try and shed the extra weight – usually one or two pounds at the most – Chimaev was so far away that there was no point, all but cancelling his fight against Diaz as he refused to concede the massive advantage to his already favoured opponent.

While a few pounds may not seem like it would decide an outcome, competitors who have missed weight have been known to thrive on fight night due to the fact they did not have to drain themselves all the way down to the required number. 

It raises questions about the validity of cutting weight at all, with other promotions such as top Asian brand ONE Championship outright banning the practice by forcing fighters to pass hydration tests in the lead up to the fight to ensure they are not dangerously dehydrated in the effort to shed the last few pounds.

With the main event off, the call was made to Ferguson to step in on short notice, having been booked in the co-main event against Li Jingliang.

With Ferguson making the weight at 170lbs and accepting the bump up to the main event – and almost certainly a significant pay increase to save the card – it left Li without a fight.

So, with Chimaev still willing to fight at a higher weight, he will now face Kevin Holland, with those two said to be at the centre of the backstage scuffle that ended the press conference. Holland had been preparing for a catchweight bout at 180lbs against Daniel Rodriguez, so he will not be outweighed by Chimaev when they contest the new co-main event.

That left Li and Rodriguez as the two remaining fighters to match up, but the problem is that Li had weighed in at 170, and Rodriguez came in at 180. In an Instagram post, Li said it is "no problem", and accepted the extremely tough upgraded opponent.

UFC 279's scheduled main event between Nate Diaz and Khamzat Chimaev is in doubt after the latter missed weight by 7.5 pounds on the eve of the fight.

Chimaev and Diaz are scheduled to go toe-to-toe on Saturday in Las Vegas but that bout is in jeopardy after the Swedish fighter hit the scales at 178.5 pounds, above the non-title welterweight limit of 171 pounds – which Diaz weighed at.

Further complicating the matter is the fact 37-year-old Diaz will become a free agent following the weekend, with Saturday's fight scheduled as his last with UFC, and it is unknown what would happen with his contract if the fight was cancelled.

It continues a week that has been far from what UFC planned, with Thursday's press conference having been cancelled after Chimaev got into a skirmish with Kevin Holland, who is due to face Daniel Rodriguez on the card.

Co-main event fighters Tony Ferguson and Li Jingliang both made weight for their bout, with Holland and Rodriguez also meeting weight.

With the main card featuring four fights outside of Chimaev v Diaz, the show could go ahead without the main event, though Ferguson has been touted to fight Diaz instead.

A further eight bouts are scheduled on the early preliminary card and the preliminary card.

UFC 279's scheduled main event between Nate Diaz and Khamzat Chimaev is in doubt after the latter missed weight by 7.5 pounds on the eve of the fight.

Chimaev and Diaz are scheduled to go toe-to-toe on Saturday in Las Vegas but that bout is in jeopardy after the Swedish fighter hit the scales at 178.5 pounds, above the non-title welterweight limit of 171 pounds – which Diaz weighed at.

Further complicating the matter is the fact 37-year-old Diaz will become a free agent following the weekend, with Saturday's fight scheduled as his last with UFC, and it is unknown what would happen with his contract if the fight was cancelled.

It continues a week that has been far from what UFC planned, with Thursday's press conference having been cancelled after Chimaev got into a skirmish with Kevin Holland, who is due to face Daniel Rodriguez on the card.

Co-main event fighters Tony Ferguson and Li Jingliang both made weight for their bout, with Holland and Rodriguez also meeting weight.

With the main card featuring four fights outside of Chimaev v Diaz, the show could go ahead without the main event, though Ferguson has been touted to fight Diaz instead.

A further eight bouts are scheduled on the early preliminary card and the preliminary card.

The UFC's traditional pre-pay per view press conference was unexpectedly cut short on Thursday, with president Dana White telling the media he has never seen anything like the fight which broke out backstage.

It is being reported by Ariel Helwani that while fighters were waiting backstage before being brought out, welterweight fighters Kevin Holland and Khamzat Chimaev exchanged words, before things turned physical with their entourages getting involved.

Helwani also reported that Nate Diaz – Chimaev's opponent this weekend – and his crew got involved after things kicked off, describing it as "total chaos".

Addressing the media before word had spread about the incident, White said "this has never happened in the history of this company", before adding "for everybody's safety, this is the right decision".

In an interview after the dust had settled, White offered some more insight into the severity of the situation.

"22 years I've been doing this – we've never had an incident like today," he said.

"All hell broke loose out here… we stopped it, but we didn't do a good job of not letting it happen.

"It's never happened before, and we'll be ready for it next time."

Journalist Helen Yee added that White claimed the camps travelling with Chimaev and Diaz consisted of at least 100 people, rendering their limited security helpless.

Jake Paul will return to the boxing ring to face UFC legend Anderson Silva at Phoenix's Gila River Arena on October 29.

Paul has not fought since his sixth-round knockout of Tyron Woodley in December 2021, his second of two wins against the former UFC welterweight champion.

Before that, Paul had knocked out Ben Askren and after overcoming Woodley for a second time was meant to face Tommy Fury and Hasim Rahman Jr. before both fights fell apart in August.

YouTube star Paul has made somewhat of a name for fighting former professionals from the octagon, with the next challenge coming against former UFC middleweight champion Silva.

While holding the record for most consecutive victories in UFC (16), 47-year-old Silva boasts a 3-1 tally as a professional boxer, beating the likes of Julio Cesar Chavez and former UFC light heavyweight champion Tito Ortiz.

He retired from mixed martial arts in 2020 after five losses from his last six fights, albeit against world-class opponents.

The bout will be contested at 187 pounds over eight three-minute rounds, the weight Paul claims Anderson's team requested.

"The plan is for me to fight at 185 [pounds] going forward and that's what I wanted this fight at given it was the weight Anderson Silva fought at during his reign as the most dominant UFC champion ever," Paul told ESPN.

"Anderson's team asked if we could set the weight at 187, two pounds more than what I wanted. That level of professionalism and precision is appreciated, and of course I agreed to his request."

Paul hailed the capabilities of Anderson with a statement to announce the clash, pointing to his victory over Chavez as proof of his boxing ability.

"Anderson 'The Spider' Silva is the most versatile fighter the world has ever seen," the statement said. "Just a year ago he outclassed boxing champion Julio Cesar Chavez Jr., and showed the world why he is often referred to as the greatest fighter of all time.

"Every expert, from MMA to boxing, has said Jake Paul won't fight Anderson Silva. They said Jake Paul is afraid of Anderson Silva, and Jake Paul would lose to Anderson Silva.

"Well, to all the non-believers – Jake Paul is fighting Anderson Silva. It's an honour to have the opportunity to share the ring with the greatest UFC striker of all time.

"On Saturday, October 29, I will walk humbly into the ring, touch gloves with a living legend and do my best to exterminate 'The Spider'."

Tom Brady almost joined the Las Vegas Raiders in 2020 after a deal was brokered by UFC chief Dana White – only for Jon Gruden to walk away from negotiations in the final stages.

Elite quarterback and perennial winner Brady entered the 2020 season as a free agent, despite boasting six Super Bowl titles and nine AFC championships.

The Raiders, aided by the involvement of White, were reportedly set to swoop for the former New England Patriots star before the Tampa Bay Buccaneers secured a deal for one of NFL's most coveted names.

Brady would throw 4,633 passing yards and 40 touchdown passes as Tampa Bay won eight consecutive games en route to his seventh Super Bowl title in his maiden Buccaneers term.

The intervention of then-Raiders coach Gruden proved the stumbling point as Brady and colleague Rob Gronkowski, who was contracted to the Patriots at the time, ended up playing for Tampa Bay.

"I worked to put that deal together for Brady and Gronk to come to the Raiders," White said on ESPN during Saturday's UFC 278 coverage after being convinced by Gronkowski to tell the story.

"It was almost a done deal. And at the last minute, Gruden blew the deal up and said that he didn't want him and all hell broke loose, man. It was crazy.

"And Brady was already looking at houses. It wasn't said yet that Gronk was going to be coming. So Las Vegas would have had Brady and Gronk the year that the Bucs won the Super Bowl, except Gruden blew the deal up."

While Brady was said to have been a long-term target of the Raiders should he become a free agent, White believes the Las Vegas franchise could have comfortably secured Gronkowski as well.

Neither arrived and duly went on to Super Bowl success with the Buccaneers, with Gruden resigning as Raiders coach in October 2021 – yet Gronkowski has no regrets.

"I'm glad it did not go through," Gronkowski added. "It all worked out for the best, man. I'm glad we went to Tampa, man. It just worked out. I love that place."

Tampa Bay are preparing for their third campaign with Brady as their quarterback, though the veteran has not appeared at their training camp in pre-season.

Leon Edwards called out the doubters after shocking the MMA world with a final-round head kick to knock out Kamaru Usman to claim the welterweight title at UFC 278 on Saturday.

Usman seemed destined for victory and a sixth title defence after dominating from the early stages but Edwards' left-foot kick knocked out the 35-year-old Nigerian with less than a minute remaining in the fifth round.

Edwards' kick caught Usman flush, appearing to knock him out on contact and stun the 17,000-strong crowd in Salt Lake City.

Jamaica-born Edwards leapt out of the octagon in celebration as Usman, whom many considered the pound-for-pound best fighter in the world, lay on the ground beaten.

"You all doubted me, said I couldn’t do it," Edwards said. "They all said I couldn’t do it.

"Look at me now. Look at me now. Pound-for-pound one."

The head-kick KO ended Edwards' 15-fight UFC winning streak, falling short of Anderson Silva's UFC record.

The two had faced off previously in December 2015, with Usman triumphant by unanimous decision.

Paulo Costa got the better of Luke Rockhold in an epic, winning by unanimous decision, 30-27 30-27 30-27, to put himself back in title middleweight contention.

Rockhold seemed fatigued after the first round with the Brazilian scoring the first takedown and delivered a barrage of body shots on the ground.

The American had a moment in the second round, landing a roundhouse kick on Costa, but the Brazilian hit back with a big body kick late in the round after a timeout following a low blow.

Despite Costa's dominance, Rockhold gallantly fought on and landed a few shots but the Brazilian would not relent, capitalizing on a sloppy takedown attempt to close it out.

UFC legend Jose Aldo was outclassed by Merab Dvalishvili who claimed a unanimous decision victory, 29-28, 29-28 30-27.

Fast-rising bantamweight contender Dvalishvili was unable to get Aldo on the ground where he wanted him but outworked him for the win.