For Joshua, this will be his second professional fight outside of the UK.
Ruiz also hinted at some of what he was working on in preparation for the title defense against Joshua.
While Ruiz believes that Saudi Arabia is "the flawless place to make history", as he looks to replicate his performance from six months ago.
"There is no fear in my heart, no fear in my eyes and I'm really looking forward to putting on a show".
Ruiz has splashed out on a mansion plus a fleet of cars worth nearly three quarters of a million pounds since his stunning knockout win over Anthony Joshua in their first fight in NY in June.
That is because the Crown Prince of Saudi Arabia, Mohammad Bin Salman Al Saud, has asked for the ring to remain in the country after the bout. Missing the nastiness and spite of their legendary first and third conferences, the second contest between the pair was dominated by Ali's velocity as he unleashed a number of eye-catching flurries earlier than shutting out all of Frazier's responses with quite a lot of spoiling techniques to arrange a mega conflict with world champion, George Foreman. "I think that's important because it keeps me humble and reminds me where I've come from and how I'm not going to change for anyone".
The Saudis faced intense diplomatic fallout over last year's murder of dissident journalist Jamal Khashoggi in the conservative kingdom's consulate in Istanbul.
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All that did was get him a scolding by Germany's Angela Merkel and even from Trump , with zero allies coming to his defense . The poll, carried out from November 24-26, asked: "Do you consider Canada to be an ally or an enemy of the United States? ".
He said: "We're going to make history".
No stranger to hyperbole, Joshua's ambitious promoter, Eddie Hearn, is comparing the occasion to the "Rumble in the Jungle" and the "Thrilla in Manila" - two famous heavyweight fights from the 1970s which were held in unlikely global locations.
He said: "When I regain those belts".
"It has been a rollercoaster and now that I made the dreams come true there is no way I will let these go". It's not a time to celebrate.
Meanwhile Anthony Joshua, yesterday opened up on his gameplan to prise the world heavyweight titles back from the clutches of Ruiz Jr tomorrow. "It's a time to keep that challenger mindset and move on to the next target". "I just want to do a job".
"I know "AJ" has been working on different technicals, he's slimmed down, so we've been working on different things and angles, different pressures and combos, ready for whatever he brings".