Ruiz shocked the boxing world by knocking out AJ in June to become Mexico’s first heavyweight champion, however the Brit instantly activated a rematch clause.
The victory thrust the 29-year-old into superstardom with great champions from the past waking up and taking notice of his achievements.
Tyson, the former undisputed heavyweight king, met Ruiz to record a podcast earlier this month and told ESPN Deportes: “He was here the other day.
“We talked and we interviewed him.
“It was really nice hanging out with him, he’s really a beautiful person.”
The rematch between Ruiz and Joshua is now one of the most anticipated fights in boxing.
Current sticking points over the venue are still to be decided, but it is known that the pair will almost certainly square off again in December.
When asked for his thoughts on whether the underdog can prevail a second time, Tyson replied: “He can do it.
“If he did it once, he can do it again. We’ll have to find out.”
‘Iron Mike’ previously discussed the first bout between Joshua and Ruiz on his podcast and said of AJ: “F***. This stage in life is really what makes them.
“Because they already have money now. Now it’s all about: Who are you?
“Now you’re dealing with adversity, who are you? What are you gonna do now?
“Are you gonna lay down now? And say, ‘Hey, I don’t want no more.’
“Do you stay down and give it up? Or do you believe in it? You got any f***ing pride, n****?
“What do you believe in? Do you believe in your ancestors? Your mother, your father, your kids? What do you believe in?
“What have you got to fight for? And then it’s up to him, I don’t believe in s*** maybe. I’ve got money.
“I don’t believe in none of this s***. And that’s cool too, if it’s not who you are.”