Manny Pacquiao and Keith Thurman meet in a fight that will determine who can lay claim to being among the top welterweights in the world.
Pacquiao has extended his career into his 40s and recent victories over Lucas Matthysse and Adrien Broner suggest he is rejuvenated following his summer 2017 defeat by Jeff Horn.
But he will face his toughest test since his defeat by Floyd Mayweather four years ago when he touches gloves with Thurman in Las Vegas.
Thurman has endured an injury-hit two years and has fought just once in that period.
Here is everything you need to know about tonight’s fight card…
What time is the fight?
The fight will start between 4.30am and 5am UK time on Sunday morning.
What TV channel is it on?
The fight will be broadcast on ITV Box Office at a cost of £12.95. Click here to order and for more information.
Is there a live stream?
The fight can be streamed via the ITV Box Office website via the link above.
Where is the fight?
The fight will take place at the MGM Grand Garden Arena in Las Vegas.
What are the odds?
Who is on the undercard?
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Sergey Lipinets vs John Molina Jr
Caleb Plant vs Mike Lee
Efe Ajagba vs Ali Eren Demirezen
Amir Khan claims he and Manny Pacquiao have both signed up for a fight and is targeting a meeting in Saudi Arabia later this year.
The 32-year-old Briton says the pair have both agreed terms with Riyadh the venue for a long-awaited bout.
Khan won the WBC international welterweight title with a fourth-round stoppage of Billy Dib in Jeddah on Saturday night.
Now he intends to return to Saudi Arabia on November 8 to face former sparring partner Pacquiao, if the the Filipino comes through unscathed against Keith Thurman in their WBA welterweight title fight in Las Vegas this weekend.
“The next fight is going to be back in Saudi Arabia, it is going to be in Riyadh this time and it is going to be on November 8,” Khan said.
“Hopefully it could be the Manny Pacquiao fight, we have both signed and the fight is done and hopefully he gets past his fight on the weekend then we go and do that fight.
“If not there will be other back-up plans but we wish Manny Pacquiao all the very best for this weekend’s fight.”
Pacquiao is the favourite to see off Thurman on Saturday night but Khan believes their bout pencilled in for later in the year would still happen if the 40-year-old was to lose at the MGM Grand.
Khan said: “If he gets injured or loses, what happens there?
“I still think, even if he loses, it is a very big fight in the Middle East, there has been so much talk about it for many years.
“I just feel that Manny is himself and doesn’t get any injuries and the fight can happen.”
Asked about his personal relationship with Pacquiao, Khan said that would have to be put to one side when they touch gloves at some point in the future.
“We are friends,” he added.
“The respect is always there but it is a business and sometimes friends have to fight each other.
“Once you are in the ring you switch on, it is the same with Manny Pacquiao, we have to go in there and see who the best is.
“I can see the press conferences being very chilled and calm and not outspoken but let’s see what happens.”