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Andy Ruiz Jr faces Anthony Joshua as they rematch for the unified heavyweight titles.
The Mexican-American takes on the British boxer for the WBA (super), IBF and WBO heavyweight belts in a hotly anticipated clash in Saudi Arabia.
Here is all you need to know about UK start times and TV coverage on Saturday night.
What time is the main event on?
Expect Ruiz Jr and Joshua to make their way to the ring at 8.45pm UK time.
Sky Sports Box Office coverage begins at 5pm UK time.
Who is on the undercard?
The co-main event will feature a heavyweight contest between Alexander Povetkin and Michael Hunter.
Croatian prospect Filip Hrgović takes on Eric Molina while heavyweight contender Dillian Whyte and amateur standout Magomedrasul Medzhidov are also in action.
What TV channel is it on?
Sky Sports Box Office will show all the action LIVE in the United Kingdom on Saturday night.
It is priced at £24.95 and available on Sky channel 491 or 492.
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