All eyes will be on Madison Square Garden in New York tonight as Anthony Joshua takes on Andy Ruiz Jr.
The Brit makes his US debut as he bids to make his name on the other side of the Atlantic.
He was due to take on Jarrell Miller until the brash trash-talking New Yorker tested positive for three banned substances.
Joshua is the huge favourite to keep hold of his belts against the Mexican American.
There is other action on in the UK however and you can find full details of the cards, including how to watch them, right here...
Anthony Joshua vs Andy Ruiz Jr
Fight time
The ring walks will take place at 3.30am UK time with the fight starting at around 3.45am.
TV channel
The fight will be broadcast live on Sky Sports Box Office and associated online platforms.
You can book online here or through your TV remote at a cost of £19.95.
If you don't have Sky you can stream it through NOW TV without the commitment for the same price by clicking here.
Live stream
The fight can be streamed through the website above and on your mobile devices.
Undercard
Callum Smith vs Hassan N'Dam
Chris Algieri vs Tommy Coyle
Katie Taylor vs Delfine Persoon
Josh Kelly vs Ray Robinson
Joshua Buatsi vs Marco Antonio Periban
Souleymane Cissokho vs Vladimir Hernandez
Diego Pacheco vs Jared Chauvin
Austin Williams vs Quadeer Jenkins
Odds
Anthony Joshua 1/20
Andy Ruiz Jr 12/1
Draw 40/1
Click here to bet with Betfair
Jay Harris vs Angel Moreno
Fight time
The fight will start at around 11pm.
TV channel
The fight is not on TV in the UK but can be watched on YouTube with iFL TV. It will be shown on ESPN+ in America.
Live stream
The fight will be streamed on YouTube via iFL TV.
Undercard
Kieran Gething vs Craig Woodruff
Craig Evans vs Stephen Ormond
Sultan Zaurbek vs Sergio Gonzalez
Zhankosh Turarov vs Richmond Djarbeng
Jacob Robinson vs Jose Aguilar
Sean McGoldrick vs Moises Mojica
Lance Cooksey vs Jamie Quinn
Rhys Edwards vs Rafael Castillo
Maredudd Thomas vs Kevin McCauley
David White vs Luke Fash
Odds
Jay Harris 2/7
Angel Moreno 7/2
Draw 28/1
