British boxer Anthony Joshua will tonight (August 20) take on Oleksandr Usyk in a bid to win back his world championship belts.

Ukrainian Usyk took Joshua's WBA, IBF, WBO and IBO heavyweight titles when he beat the 32-year-old Londoner on points at the Tottenham Hotspur Stadium in September last year.

Now, almost 12 months on, the pair are set to clash again in Jeddah, Saudi Arabia, in a fight billed the 'Rage on the Red Sea'.

READ MORE: Who is Oleksandr Usyk? The Ukrainian boxing tonight against Anthony Joshua

Joshua vs Usyk 2: Ring walk UK time

The Bolton News: Anthony Joshua at the Shangri-La Hotel in Jeddah, Saudi Arabia. Picture: PAAnthony Joshua at the Shangri-La Hotel in Jeddah, Saudi Arabia. Picture: PA

Former champion Joshua, who weighs in at a colossal 111kg (more than 17 stone), will make his way to the ring to take on 35-year-old Usyk in Saudi Arabia at around 10.30pm, UK time.

The first bell is set to ring at 10.54pm, according to the fight promoters.

However, the televised part of the undercard - which includes Team GB Olympic silver medallist Ben Whittaker taking on Peter Nosic, and Badou Jack square off against Richard Rivera - will begin at 6pm, UK time.

How to watch Joshua vs Usyk live stream

The Bolton News: Oleksandr Usyk strikes Anthony Joshua during the pair's first encounter at Tottenham Hotspur Stadium. Picture: PAOleksandr Usyk strikes Anthony Joshua during the pair's first encounter at Tottenham Hotspur Stadium. Picture: PA

The fight will be screened in the UK by Sky Sports Box Office, with coverage starting at 6pm (UK time).

Booking on the day, by phone, will cost customers £31.95 - and could see customers charged an additional £2 booking fee if an agent is used.

The cost will reduce to £26.95 from midnight, with repeat showings, in full, beginning at 8am and 3pm on Sunday.

If you don't want to fork out to watch the fight, you can listen for free via the talkSPORT app, on DAB digital radio, or 1053 and 1089 AM.

Watch Anthony Joshua vs Usyk weigh in

Yesterday, at the pre-fight weigh-in, the rivals shared a 107-second stare down on the stage after taking to the scales.

Usyk came in at 15st, 11lb and 10oz, while the challenger weighed 17st 2lbs, both marginally heavier than when they met in September last year.

Joshua vs Usyk 2: Betting odds

Usyk is a firm favourite for the fight, coming off the back of his unanimous points win last September.

Here are the odds as of last night with selected bookmakers:

Bet365: Usyk, 8/15; Joshua, 13/8; draw, 16/1

Skybet: Usyk, 4/7; Joshua, 13/8; draw, 16/1

Paddy Power: Usyk, 1/2; Joshua, 7/4; draw, 18/1

William Hill: Usyk, 8/15; Joshua, 7/4; draw, 16/1

Usyk Joshua 2: Undercard

The full line-up of the undercard for the Usyk/Joshua main event, is as follows:

MoneyKicks vs Traycho Georgiev – welterweight contest (4 rounds)

Ziyad Almaayouf vs Jose Alatorre – super-lightweight contest (4 rounds)

Bader Alsamreen vs Fuad Tarverdi – super-lightweight contest (6 rounds)

Ben Whittaker vs Peter Nosic – light-heavyweight contest (6 rounds)

Daniel Lapin vs Jozef Jurko – heavyweight contest (8 rounds)

Andrew Tabiti vs James Wilson – heavyweight contest (8 rounds)

Ramla Ali vs Crystal Garcia Nova – super-bantamweight contest (8 rounds)

Badou Jack vs Richard Rivera – cruiserweight contest (10 rounds)

Callum Smith vs Mathieu Bauderlique – final eliminator for WBC super-middleweight world title (12 rounds)

Filip Hrgovic vs Zhilei Zhang – final eliminator for IBF heavyweight world title (12 rounds)