Floyd Mayweather beats Manny Pacquiao on points
American gets unanimous decision in Las Vegas
Mayweather remains unbeaten with 48 wins
Ben Weaver: I made it! He didn't! Come on.
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BBC Radio 5 live
Live build-up with award-winning commentator Mike Costello is underway on BBC Radio 5 live now.
You can listen through the coverage tab at the top of this page and tune in on the BBC Radio 5 live website.
Dan Roan
BBC sports editor in Las Vegas
"The anticipation for Mayweather v Pacquiao is understandable. After all, these are two of the greatest pound-for-pound fighters of their era - one undefeated; the other a champion of six weight divisions. Something has to give. And few sports can match boxing for sheer fervour when it comes to fight-nights such as this.
"And yet, despite the barely believable numbers being generated here, they are also perhaps symbolic of a sport that has sold its soul and lost its way...."
Read more of Dan's piece titled 'Why riches alone can't revive boxing' on the BBC Sport website.
Image source, Reuters
Image source, Google"Money isn't everything, money is the only thing," Floyd Mayweather once said. He lives up to the motto, earning $105m (£69m) last year to become the planet's best-paid sportsman.
His estimated wealth is around $295m (£193m). That's more than the annual output of two Pacific Islands - Tuvalu ($38m, pictured) and Kiribati ($172m) - combined.
As for Pacquiao, he must live off beans, low-cost fizzy drinks and travel using public transport with his estimated worth at only $110m (£71.2m).
Image source, APMore Hollywood royalty in the house in the shape of Jake Gyllenhaal as the 16,500 -eat MGM Grand begins to fill up.
The final fight ahead of the main event has just started and WBC super bantamweight world champion Leo Santa Cruz has enjoyed a good first round against Jose Cayetano. If this one goes the distance then we can expect Mayweather-Pacquiao in around an hour or so.
No need to wait too long for BBC Radio 5 live coverage now though. It kicks off at 03:30 BST.
Image source, Getty Images
Image source, Getty ImagesPatrick Sopp:, external Sonny Bill Williams - because he's a rugby player AND a boxer. And he's enormous (pictured).
Lan Lee:, external Definitely not interested in getting in the ring opposite Gennaro Gattuso.
We're asking you which sports star would you never want to get in a ring with and why? Tweet us on #bbcboxing or comment on the BBC Sport Facebook , externalpage.
If life takes you from a cardboard shack, to your national congress and a vast net worth, being an underdog may well not seem too daunting.
Image source, Getty Images"I'm so happy because the feeling of the killer instinct and the focus that I had years ago is back," said Manny Pacquiao this week.
"I haven't felt like this in my recent few fights, but now I feel different. I'm eager to show something, especially because I'm the underdog."
Back-to-back defeats to Timothy Bradley and at the hands of a vicious Juan Manuel Marquez knockout months later in 2012 (bottom picture) somewhat blotted Pacquiao's copy book. He has won three times since.
Image source, AFPKasirye Sseruwagi Ronald: , externalTo beat Mayweather, you must have fast hands, the quick feet to get the hands there, and the attitude of a volume puncher. #Manny #pacman has all those attributes.
Where are you following the action and who do you think will win? Send us your pictures and predictions via Twitter using the hashtag #bbcboxing or BBC Sport's Facebook , externalpage.
Anyone can pay to use Freddie Roach's Wildcard Gym in Hollywood if they part with $5 a day and if the 55-year-old trainer had charged media in this last few weeks, the scrum would have produced some juicy takings.
Image source, Getty ImagesOne customer is a bit special to Roach though. His relationship with Pacquiao has been described as father-like by the fighter himself.
On a recent trip to the Philippines Roach was watching Pacquiao play basketball when someone asked him if he was still the father figure. "I think we are just friends," Roach replied.
"How come every time Manny shoots a basket he looks at you?" Roach was asked. Roach observed and sure enough, every successful basket was followed by a look from the man who has spent the last three months firing punches his way. "You're still his father figure," Roach was told.
Floyd Mayweather will have his father Floyd Snr in charge in his corner but the pair have not always enjoyed a good father-son or professional relationship.
Floyd Jnr has been guided by his uncle Roger in his corner for the vast majority of his professional fights.
Image source, Getty ImagesContrast that with the continuity across the ring.
"I go to bed thinking about the fight, I wake up thinking about the fight, I need him to fight a perfect fight," said Freddie Roach of his long-term charge.
Manny Pacquiao draws a crowd even when he goes for an early morning run.
Like Forrest Gump in the 1994 classic film, Pac Man is followed from his Hollywood home each morning by scores of fans who want to join him on a jaunt.
Image source, Getty ImagesIn the gym though, he has been in lockdown, and according to the boxing rumour mill at least, the Philippine slugger arrived at training camp with a strategy to beat Mayweather. Why is this perhaps noteworthy? In all of their fights as a team to date, trainer Freddie Roach says Pacquiao has never watched a video of an opponent or suggested anything.
Steve Bunce
Boxing expert on BBC Radio 5 live in Las Vegas
"The boys are here - Manny with family and friends and Floyd with bodyguards. Filling up, odd atmosphere - it's all about one fight, two men."
You can listen to Steve as part of BBC Radio 5 live's commentary from 03:30 BST.
Image source, Getty ImagesAside from flying on his own planes, picking which of his fleet of luxury sports cars to drive or mulling over which pair of sunglasses to use from his lavish collection, Floyd Mayweather puts some hard yards in.
At the Mayweather Boxing Club in south Las Vegas, the 38-year-old has been living on a diet of over 1,000 punches a day, 700 sit ups and around seven miles of running (or as boxers like to call it 'road work') each day.
'Money Man' - known for keeping bizarre hours - has also been freezing his body in a Cryotherapy chamber to heal muscles, turning up for the treatment at 3am on some occasions.
Did you know? Manny Pacquiao's former strength and conditioning coach Alex Ariza is now part of Floyd Mayweather's staff., external
Hollywood is in Las Vegas tonight. Well, some of its well-known names at least.
Actors Clint Eastwood, Don Cheadle and Jon Voight are dodging microphones as eager media seek their views on who wins this one.
Image source, Getty ImagesBBC Sport's Ben Dirs:, external "Manny and Floyd are in the building. The MGM Grand Garden Arena pretty sparsely filled as Lomachenko goes through his paces in near silence."
Vasyl Lomachenko comfortably defended his WBO Featherweight crown with a stoppage of Gamalier Rodriguez in the ninth round. It was dominant to say the least.
Image source, Getty Images
Mike Costello
BBC Radio 5 live boxing commentator in Las Vegas
"The frenzy continued earlier in the race and sportsbook area, which I walked through in this MGM Grand Hotel, which is basically an open area betting shop within the casino.
"There was a queue 100 metres long to place bets, most of them on the boxing. It's a massive Saturday of sport here in the United States, with the Kentucky Derby, the New York Yankees against the Boston Red Sox in baseball, the NFL draft continues and it's all building up to the fight."
British bookmakers have Mayweather as 1-2 favourite; Pacquiao at 2-1 and the draw rated a 14-1 chance.
You can listen to Mike commentate on the fight live at 03:30 BST on BBC Radio 5 live.
Image source, BBC SportJames:, external Watching it with a ginger cat.
Eyes wide open, no going to bed for that one.
In a fight of contrasts, one similarity is the difficult start to life both Manny Pacquiao and Floyd Mayweather had.
Pacquiao hails from the southern most point of the Philippines - General Santos City - an area once known as the 'Tuna Capital' of the country for its fishing opportunities.
But Pacquiao's early life there was far from one of opulence as he shared a shack with his family, scrounged for food, at one point sold donuts and eventually found boxing, where he earned $2 a fight in the early days.
Image source, GoogleMayweather entered the sport with a far firmer platform. His 1996 Olympic bronze medal saw him turn professional and earn $25,000 for his first professional fight. The American was 19 at the time and became a millionaire by 21.
That though is only part of the story. 'Money' grew up in a troubled home in Grand Rapids, Michigan. His mum took drugs, his dad at one point sold them and went to prison.
Floyd Mayweather is probably in his dressing room as Manny Pacquiao enters the MGM Grand. Television cameras are held on high to catch a glimpse, he walks arm in arm with his wife Jinkee as a huge entourage follow behind.
Such is the mass of people with him, he can't make the swift progress Mayweather did through the corridors. It's a longer procession but as he has been for much of fight week, Pac Man is smiling.
Blue tracksuit bottoms, red hoody. Comfortable clothing the order of the day for the six-weight world champion.
Image source, EPASome Philippines residents may have to choose between a cold beer and the fight this morning.
Such is the fanatical support in the country for Manny Pacquiao, a power cut is likely in some areas around fight time due to a surge in television usage.
Officials have asked for around 15,000 people to turn their fridges off, external and requested others refrain from using washing machines or air conditioning until the fight is over.
A knockout it needs to be then Manny. The chores cannot wait forever.