World titles everywherepublished at 04:08 BST
Canelo v Crawford
World titles is all these two know.
Saul 'Canelo' Alvarez has won 11 across four different weight classes while Terence Crawford has picked up 10, also in four weight classes.

Terence Crawford dethrones Saul 'Canelo' Alvarez to become undisputed super-middleweight champion in Las Vegas
Crawford becomes first male boxer to be three-weight undisputed champion
Masterclass reflected on scorecards - 116-112, 115-113 & 115-113
Crawford dominates fight, navigates ferocious ninth round as Alvarez fails to find last-ditch knockout
RESULT: Irishman Callum Walsh defeats Fernando Vargas on points
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Charlotte Coates, Kal Sajad and Sam Harris
Canelo v Crawford
World titles is all these two know.
Saul 'Canelo' Alvarez has won 11 across four different weight classes while Terence Crawford has picked up 10, also in four weight classes.
Canelo v Crawford
We've been keeping an eye on arrivals and after a host of celebrities we didn't recognise (blaming American audiences for this, not my age), we have some A-listers for you.
Netflix do tend to bring in the celebs, wonder why?
Actors Charlize Theron and Sofia Vergara
Boxer Shakur Stevenson
Tracy Morgan
Basketballer Angel Reese
Canelo v Crawford
Barry Jones
Former world champion to BBC Sport
I think Crawford will start fast, test this theory that Canelo doesn't have the energy to fight at a higher pace. Getting up on the lead if he can and force Canelo to push the fight. I do think we'll see a better Canelo than we've seen in the last few years and size will play a factor and I think he might stop Crawford. I'm not totally sure on that and I can see Crawford outboxing Canelo. The only thing I don't see is Crawford stopping Canelo, which is probably what will happen now that I've said it.
Canelo v Crawford
Saul 'Canelo' Alvarez will be defending his super-middleweight world titles.
The WBO, WBA (Super), IBF and WBC belts will be on the line, as well as the Ring Magazine title.
Canelo v Crawford
I'm no expert or anything but I don't think we're getting a 4am ringwalk.
We're currently in round seven of Christian Mbilli v Lester Martinez and then we have another fight after that before the main event.
Try 5am...
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Watching from the Normand Navigator just off Georgetown Guyana. 11pm ringwalk! All in on Canelo.
Daniel onboard the navigator
Stockport people getting ready for the big one, been out to a Northern Soul event and now I got Crawford on points.
Anonymous
Canelo v Crawford
I recently watched a documentary where Saul 'Canelo' Alvarez bought a watch for £1m like it was £100.
Eye-watering stuff.
Canelo v Crawford
Kal Sajad
BBC Sport at Allegiant Stadium, Las Vegas
Alvarez has been pure box-office all week. Flashy, confident, strutting around Las Vegas like he owns the place - which, let’s be honest, he kind of does.
He’s reportedly set to bank around £110m tonight and carries himself like a movie star.
The sunglasses indoors at the grand arrivals? Either swagger turned up to 11… or a new dad hiding sleepless eyes after his wife gave birth just a month ago.
Whatever the reason, the aura is there.
Canelo v Crawford
Some reported, massive numbers here.
Saul 'Canelo' Alvarez will earn a reported purse of £111m ($150m).
Terence Crawford will take home at least £7.4m ($10m), with the total pot expected to top $200m.
Wow.
*disclaimer, pretty impossible to verify purses so take the above with a pinch of salt!
Canelo v Crawford
History is on the line for Terence Crawford tonight.
A win means he will become the first male fighter to be undisputed champion in three weight divisions in the four-belt era and surely catapult him into conversations for one of the greatest ever.
When BBC Sport begins a question, "If you win on Saturday you'll make history..." Crawford interrupts firmly: "When I win on Saturday, I'll make history.
"This fight is about cementing my place in history."
Check it out below! We can confirm a shudder went down Kal Sajad's spine when Crawford corrected him.
Canelo v Crawford
Saul 'Canelo' Alvarez v Terence Crawford is a fight for legacy, according to someone who has been there and done it, Andre Ward.
Have a listen to what he has to say.
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Watching from Queenstown New Zealand. It's a 5pm ringwalk here. Perfect.
Anonymous - please leave your name!
Alright, alright. No need to rub it in!
Kal Sajad
BBC Sport at Allegiant Stadium, Las Vegas
The cheapest beer you can buy in the bar behind the media section is $20. Criminal. Just for clarification, I'm not drinking on the job. I'm just in complete shock and needed to share.
Canelo v Crawford
The only fighter to have faced both Saul 'Canelo' Alvarez and Terence Crawford is Briton Amir Khan. He was knocked out by both.
Khan thinks Crawford is "untouchable".
"It's a fantastic fight but I just can't see Canelo beating him. Crawford is untouchable and I see him winning by skill, movement and holding his weight well."
Canelo v Crawford
Lennox Lewis
Former undisputed heavyweight champion to BBC Sport
It's not really easy coming up in weight. You get hit hard and sometimes it can affect you.
What Crawford has to realise is not to get hit to save his energy. He's coming up against a guy who can hit hard.
To absorb those punches takes the energy out of you.
Canelo v Crawford
"The weight will be a problem".
As you can see from the chart below, Terence Crawford has put on a stone and a half in weight for this fight but is looking ripped and powerful.
"It's been different because I don't have to worry about anything - the weight room, strength and conditioning, when I'm eating and things like that. I'm as happy as could be," he told BBC Sport on Tuesday.
"I woke up and ate pancakes this morning. I would never have been able to eat pancakes before."
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Just hoping there’s no controversial scoring if it goes the distance. I just don’t know how boxing can have such opposing views from so called experts. It’s tainted the sport for too long, bring in the AI judge!
Jay from Bucks
What a fight. Surpassing even those of Usyk vs Fury most recently, which were mega fights in their own right. I've got Crawford by points. The way he dismantled Shawn Porter several fights ago, switching stance and finding a way when he looked to be down on the scorecards. But this will be his greatest feat yet.
Anonymous - don't forget to leave your name!
Canelo v Crawford
The official weigh-in was held behind closed doors at the Fontainebleau on Friday morning before the ceremonial weigh-in took place in the T-Mobile Arena hours later.
It was like a full-blown victory parade with a carnival of Mexican flags, football kits and chanting as Terence Crawford was booed relentlessly.
Despite the xtra weight, Crawford looked ripped as he said: "I feel wonderful. I can't wait until tomorrow."
Both fighters came in half a pound under the 12st limit.
Canelo v Crawford
Kal Sajad
BBC Sport at Allegiant Stadium, Las Vegas
After a pretty quiet start to the week, Vegas began to buzz from mid-week onwards.
The hotels, the casinos, the lobbies - everywhere you looked, particularly today - was packed with boxing fans draped in Mexican flags.
I’ve covered big shows in Saudi Arabia where the atmosphere is a – to put it simply - flat, but this is Vegas, and this is big-time boxing.
With Mexican Independence Day just around the corner, it felt more like a carnival than a fight week.
Crawford might be fighting in his home country, but he will very much be going into the lion's den this evening.
Crocker beat Donovan by split decision
One world title fight down, another to go.
Lewis Crocker upset the odds to defeat rival Paddy Donovan in their much-anticipated rematch to win the IBF welterweight title.
Great scenes in Belfast's Windsor Park when that result was read out for one of their own.
Read full report of an emotional night in Belfast here.