Yes. This is really happening. Conor McGregor and Floyd Mayweather will fight on August 26, 2017.
Mayweather (49-0, 26 KOs), the best boxer of his generation and one of the best ever, retired from boxing after defeating Andre Berto by unanimous decision in September 2015. Ireland's McGregor (21-3, 18 KOs) is the face of the UFC and one of the most talented fighters the promotion has to offer. He last fought in November, a KO2 victory over Eddie Alvarez to defend his UFC lightweight belt.
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Has McGregor psyched out Mayweather?
ESPN's Steve Bunce shares his thoughts on Floyd Mayweather and Conor McGregor's recent world press tour.
Mayweather-McGregor tour sold hate, not a fight
The Floyd Mayweather-Conor McGregor promotional tour sunk to new depths of racism, homophobia and misogyny. -- Mike Wise
How top MMA trainers would prepare McGregor for Mayweather
How should MMA star Conor McGregor -- with no professional boxing fights on his resume -- approach his bout with Floyd Mayweather? Brett Okamoto asked many top trainers for their strategy. -- Brett Okamoto
Who is Mayweather?
There is an elite group of fighters who are reflections of the ethos in which they boxed. Floyd Mayweather is undoubtedly the best fighter of his generation and he got there based on pure talent and a larger-than-life personality. -- Nigel Collins
Scoring the Mayweather vs. McGregor news conferences
The four days of news conferences were the fights before the fight. How would judges score the verbal battle between Floyd Mayweather and Conor McGregor? We have a winner. -- Dan Rafael and Brett Okamoto
The Mayweather-McGregor world tour a spectacle ... and thankfully it's over
The Floyd Mayweather and Conor McGregor world tour was indeed entertaining but also extremely disturbing given some of the actions and words of the fighters. -- Arash Markazi
Are we going to go on validating the Mayweather-McGregor trash talk?
We all knew the buildup to the Floyd Mayweather and Conor McGregor fight would feature posturing and hyper-masculine aggression -- but it's quickly devolved into bigotry and misogyny. espnW's Sarah Spain asks: Are these people deserving of our admiration? -- Sarah Spain
McGregor: I beat Floyd in trash-talk battle
Conor McGregor insisted that he won the four-round trash-talking battle with Floyd Mayweather Jr. after enjoying a raucous 29th birthday party at the London media event on Friday. -- Nick Parkinson
Mayweather: 'My legacy is already set'
Floyd Mayweather had no desire to return to the ring -- until the opportunity to fight Conor McGregor arose. Now Mayweather says he has no interest in coming back after the Aug. 26 megafight. -- Dan Rafael
The best of Mayweather-McGregor world tour
Four cities and three countries over four days. Floyd Mayweather and Conor McGregor traded verbal jabs from one city to the next.
McGregor hasn't gotten under Mayweather's skin
Floyd Mayweather says Conor McGregor's antics haven't affected him and adds that he respects that McGregor believes in himself.
Mayweather: I'm the biggest name in MMA and boxing
Floyd Mayweather talks to Sal Paolantonio about throwing money at Conor McGregor, making reference to his gentleman's club in Las Vegas, and why the news conferences have created such a large draw.
McGregor's coach fires warning to Mayweather
Conor McGregor's UFC coach John Kavanagh has warned Floyd Mayweather the Irishman's boxing skills are improving all the time. -- ESPN.com news services
Mayweather, McGregor fuel drama in 2nd news conference
Floyd Mayweather and Conor McGregor hype their megafight and relentlessly needle each other in the second news conference of their world tour.
Floyd gets Irish flag, Conor grabs Floyd's backpack
Floyd Mayweather tricks a fan into throwing him an Irish flag. Instead of giving it to Conor McGregor, he drapes it over his shoulders. McGregor responds by doing a search of Mayweather's money-filled backpack.
IRS: Mayweather owes $22.2M on 2015 taxes
Floyd Mayweather Jr. still owes $22.2 million in taxes from 2015, according to the IRS. -- ESPN.com news services
Mayweather, McGregor keep the hype growing
Check out the best quotes and photos from Floyd Mayweather and Conor McGregor's first press conference ahead of their August 26th bout.
Floyd-Conor tour begins with insults, taunts
Floyd Mayweather and Conor McGregor treated nearly 11,000 fans to a "great spectacle" of verbal jabs on Tuesday, when the two brash fighters faced off for the first time to launch a joint promotional tour for their Aug. 26 boxing match. -- Brett Okamoto
Mayweather, McGregor trade barbs on stage
Floyd Mayweather busts out a $100M check while Conor McGregor mocks his tax problems.
McGregor makes bold -- and profane -- fashion statement
UFC lightweight champion Conor McGregor showed up at the first stop of the press tour to promote his fight with Floyd Mayweather Jr. wearing a custom three-piece suit with a hidden message in the pinstripes. -- Adam Reisinger
Vote! Price for Mayweather-McGregor fight is set; would you pay for it?
The fight will cost $89.95, the same as the most expensive Mayweather-Pacquiao fight, with a $10 fee for HD. Will you pay for it? -- ESPN.com news services
Hype men: Mayweather, McGregor to start tour
Floyd Mayweather Jr. and Conor McGregor will visit Los Angeles, Toronto, New York and London next week to promote their megafight on Aug. 26. -- ESPN.com news services
The incredibly long odds of McGregor against Mayweather
Soon after the fight with Floyd Mayweather was confirmed, tons of small bets came in on Conor McGregor. It's a good thing they were small. Many can't fathom the extent of this mismatch. -- Bill Barnwell
Price to sponsor Mayweather-McGregor $10M
The asking price to be the title sponsor of the Floyd Mayweather-Conor McGregor fight is $10 million. -- Darren Rovell
Mayweather-McGregor: Expect a spectacle, not a fight
If you are interested in the Floyd Mayweather-Conor McGregor fight, cool. Enjoy. Have a party. Have a blast. But manage your enthusiasm and don't expect a good bout, writes Dan Rafael. -- Dan Rafael
The reality missing in the Mayweather-McGregor hype
The Floyd Mayweather-Conor McGregor fight is a soulless money grab featuring one of the most flawed superstars in all of sports. -- Sarah Spain
White won't defend McGregor-Mayweather fight
Dana White tells Max Kellerman how the people expect him to defend the impending bout, saying, "I didn't make this fight, the fans made this fight."
McGregor-Mayweather fight a 'suckers paradise'?
Stephen A. Smith doesn't think fans interested in the McGregor-Mayweather bout are necessarily "suckers" as Dan Le Batard described.
Mayweather-McGregor: What does it mean for the sports of boxing and MMA?
The fight between Floyd Mayweather and Conor McGregor is set, but what will their decision to fight have on the growth potential of their respective sports? -- Dan Rafael and Brett Okamoto
How Floyd Mayweather vs. Conor McGregor came to be
A timeline of the verbal sparring that led to the most unlikely fight of the year: Floyd Mayweather vs. Conor McGregor.
Megafight principals all agree closing Mayweather-McGregor deal came off smoothly
The now official Floyd Mayweather-Conor McGregor megafight deal was not that difficult to pull off once the talks turned serious, the Aug. 26 blockbuster fight's three principals told the media on a conference call.
It's on: Mayweather-McGregor fight finalized
The much-anticipated boxing match between undefeated Floyd Mayweather Jr. and MMA superstar Conor McGregor will take place Aug. 26 in Las Vegas. -- Dan Rafael
The science behind Mayweather-McGregor
ESPN Sport Science breaks down the power UFC champion Conor McGregor will bring to the boxing ring against the defensive prowess of Floyd Mayweather.
McGregor does work at news conferences
A news conference between Floyd Mayweather and Conor McGregor is sure to be fireworks. Look back at a few of McGregor's best moments on the dais.
Rovell thinks Mayweather-McGregor could set PPV record
Darren Rovell estimates the Mayweather-McGregor bout could surpass the PPV record set from Mayweather-Pacquiao from two years ago, but thinks ticket sales could be less.
Sonnen says let's enjoy mega-fight
Chael Sonnen acknowledges that Conor McGregor will be a huge underdog against Floyd Mayweather but adds that the event will be fun.
McGregor's fast road to enormous payday
Brett Okamoto describes the amazing journey Conor McGregor has gone on since starting on a UFC undercard in 2013 all the way to a super fight with Floyd Mayweather on August 26.
How much money will Mayweather-McGregor make?
Will Floyd Mayweather's fight against Conor McGregor make more money than his bout with Manny Pacquiao in 2015? Darren Rovell breaks down all angles of the projected finances. -- Darren Rovell
De La Hoya takes 'high road' on White criticism
Oscar De La Hoya took the high road in response to recent criticism from Dana White and said a potential bout between Floyd Mayweather and Conor McGregor "is going to suck." -- ESPN.com news services
UFC's White blasts 'two-faced' De La Hoya
UFC president Dana White ripped boxing promoter Oscar De La Hoya for badmouthing the proposed super fight between Floyd Mayweather Jr. and Conor McGregor. -- Brett Okamoto
De La Hoya warns fans off Floyd-Conor 'circus'
Oscar De La Hoya, one of boxing's most significant promoters, issued an open letter to boxing fans on Thursday slamming the proposed match between Floyd Mayweather and Conor McGregor. -- Dan Rafael
Hatton: McGregor won't lay a glove on Floyd
Ricky Hatton believes Conor McGregor and UFC face embarrassment if McGregor fails to 'lay a glove' on Floyd Mayweather, just as he, Oscar De La Hoya and Canelo Alvarez failed to, if the proposed superfight goes ahead. -- ESPN.com news services
Coach Kavanagh: McGregor already training for Mayweather
Conor McGregor's coach, John Kavanagh, spoke exclusively with ESPN about how McGregor is preparing for his boxing match against Floyd Mayweather. -- Brett Okamoto
Mayweather: If he fights, '90 percent' its Conor
Floyd Mayweather said Saturday that a potential boxing match with UFC lightweight champion Conor McGregor is "the only fight that makes sense" to him. -- Nick Parkinson
McGregor applies for boxing license in Nevada
Conor McGregor has applied in the state of Nevada for a pro boxing license ahead of a potential blockbuster fight with Floyd Mayweather. -- Brett Okamoto
McGregor terms set; talks shift to Mayweather
UFC lightweight champ Conor McGregor says he has agreed to a "record-breaking deal" to fight Floyd Mayweather. UFC President Dana White says Floyd Mayweather must still sign off on the bout. -- ESPN.com news services
Mayweather: McGregor fight delay not on me
Floyd Mayweather says his camp is waiting to hear from Conor McGregor and Dana White in order to proceed with negotiations between the boxer and MMA fighter. -- ESPN.com news services
Is McGregor fast enough to dodge Floyd?
Max Kellerman debunks the idea that Conor McGregor is immune to getting knocked out by Floyd Mayweather.
Stephen A. expects McGregor to be 'schooled' by Mayweather
Stephen A. Smith addresses the odds for a potential Floyd Mayweather-Conor McGregor bout, and acknowledges McGregor's ability to drop opponents with a single punch.
De La Hoya says Mayweather-McGregor fight 'bad for both sports'
Oscar De La Hoya shares his perspective on why the proposed megafight between Floyd Mayweather and Conor McGregor would be bad for both MMA and boxing.
Mayweather and McGregor in their own words
Floyd Mayweather and Conor McGregor are not only two of the best fighters in their respective sports but also two of the strongest talkers. Look back at some of their biggest verbal jabs over the years.
Rafael says McGregor 'has virtually no chance' against Mayweather
Dan Rafael says that the general consensus from the boxing and MMA communities is that Conor McGregor is mismatched against Floyd Mayweather in a boxing contest.
McGregor yells to Rafael, 'I am boxing!'
Dan Rafael describes his confrontation with Conor McGregor ringside at a boxing match in New York City. McGregor went face-to-face with Rafael, and the UFC star said he'll shock the world by defeating Floyd Mayweather.
Mayweather taunts McGregor, wants June fight
Floyd Mayweather Jr. is continuing to taunt Conor McGregor. Mayweather said he would put boxing gloves on again only to fight the UFC lightweight champion and urged McGregor to agree to a June fight. -- Brett Okamoto
Mayweather Jr. to McGregor: 'Sign the paper'
Floyd Mayweather says Conor McGregor should "sign the paper," as talk over a potential superfight bubbles again. -- Ben Dirs and Rob Bartlett
Mayweather: Not close to McGregor superfight
Floyd Mayweather said Tuesday that he's happily retired and isn't close to a deal to fight Conor McGregor or anyone else, a sentiment echoed by UFC president Dana White. -- ESPN.com news services
White offers $25M to both Mayweather, McGregor
UFC president Dana White said he'd give $25 million to both Floyd Mayweather and Conor McGregor for a boxing match between the two. -- Brett Okamoto
No chance Mayweather-McGregor ever happens
Does Conor McGregor's new boxing license mean anything as it relates to a potential fight with Floyd Mayweather? If you ask Team Mayweather, the answer is a simple no. -- Dan Rafael
Mayweather takes digs at 'Conor McTapout'
Floyd Mayweather Jr. posted an Instagram video of Conor McGregor tapping out at UFC 196 and offered $10,000 for the best caption posted about the video. -- ESPN.com news services
Mayweather tried to make the McGregor fight happen
Floyd Mayweather joins First Take to detail the contractual terms he would need in order to agree to box UFC champion Conor McGregor, and Mayweather explains why he is interested in fighting McGregor only and not Manny Pacquiao.