Postpublished at 03:24 BST
Before we carry on with Las Vegas chat, time to turn our attentions to Belfast briefly...
Summary
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
Get Involved - #bbcboxing, via WhatsApp on 03301231826 or text 81111 (UK only, standard message rates apply)
Postpublished at 03:24 BST
get involved Get Involved - your predictionspublished at 03:21 BST
WhatsApp on 03301231826 or text 81111 (UK only, standard message rates apply)
For those of you brave enough to be awake at this time, make sure you keep us company!
Who do you think wins this one or is it too close to call?
Get in touch using the contact details above.
Postpublished at 03:19 BST
Canelo v Crawford
Make sure you let us know how she reacts if Terence Crawford wins please, Kal!
Postpublished at 03:17 BST
Canelo v Crawford
Kal Sajad
BBC Sport at Allegiant Stadium, Las VegasThe boos when Crawford arrived at the stadium and his face hit the big screen were deafening. I doubt he will have faced hostility like this.
One woman in the crowd, proudly from Omaha, stood up to hundreds of fans chanting 'Canelo' and roared her city’s name right back at them.
All in good fun, though.
Image source, Getty ImagesCanelo in the house (stadium)published at 03:15 BST
Canelo v Crawford
Mexico's favourite son is here.
Image source, Getty ImagesWho are the judges?published at 03:13 BST
Canelo v Crawford
The referee will be Thomas Taylor.
The three judges at ringside will be Tim Cheatham, Steve Weisfeld and Max DeLuca - all from the United States.
Interestingly, this is the same team which scored Manny Pacquiao's controversial majority draw with Mario Barrios in July.
Image source, Getty ImagesA host worthy of the occasionpublished at 03:10 BST
Canelo v Crawford
Speaking of the venue...
A fight this huge needs a host worthy and that is exactly what Las Vegas' Allegiant Stadium is.
The 71,000 seater opened just five years ago and looks pretty special.
Oh, and it recently hosted John Cena's record 17th WWE Championship win at Wrestlemania 41!
Image source, Getty Images
Image source, Getty ImagesSnacks & sprinkling of fanspublished at 03:08 BST
Canelo v Crawford
Kal Sajad
BBC Sport at Allegiant Stadium, Las VegasNo chance of going hungry tonight - the media tent has already laid out a spread of snacks and sweets, with a hot dinner served at 18:00 local time.
We got to the stadium around 13:30pm local time (yes, partly for the free food), and found press and reporters set up in an own elevated section. There was only a sprinkling of fans inside, getting a feel for the place long before the main event.
When is the ringwalk?published at 03:06 BST
Canelo v Crawford
This is what we all want to know, right?
The ringwalks are scheduled for 04:00/04:30 BST so maybe get a coffee on the go. I'm already two down.
Postpublished at 03:04 BST
Canelo v Crawford
Kal is right, this is a super-fight and we're giving it the build-up it deserves.
It may be just gone 3am in the UK but this is the sort of fight that you wake up at silly time for.
Hello from Las Vegaspublished at 03:02 BST
Canelo v Crawford
Kal Sajad
BBC Sport at Allegiant Stadium, Las VegasWelcome to the Allegiant Stadium in Las Vegas where 70,000 fans are taking their seats for one of the biggest boxing nights in years: Saul 'Canelo' Alvarez v Terence Crawford.
Alvarez is the king at super-middleweight, a superstar used to the big stage. Crawford is chasing history - aiming to become the first male fighter of the modern era to be undisputed champion in three weight classes.
This isn’t just another title fight. This is a super-fight. This is why we love the sport: history, legacy, and two modern greats colliding under the lights.
The biggest fight of a generationpublished at 03:00 BST
Canelo v Crawford
Canelo. Crawford. Christmas has come early.
Hello and welcome along to our live text for a monster of a fight as Mexico's Saul 'Canelo' Alvarez puts his super-middleweight undisputed crown on the line against America's Terence Crawford.
We'll be taking you through every punch thrown in Las Vegas so it's about time we get into the build-up.
Image source, Getty Images