The YouTuber-turned-boxer and heavyweight icon are to collide in a controversial clash on July 20 in Texas.
Tyson admitted to giving up weed and sex in the build up to help install discipline ahead of his shock comeback, as The Sun reports.
It would follow the old boxing myth that avoiding sex helps performance by building up testosterone.

And Paul said on his podcast: “Yeah, he’s going to be like really angry and on edge. That’s pretty scary.
“Wow, he’s going to be like a caged animal just p****d the f*** off.”
Paul, 27, previously used the abstinence method himself during training until running into bedroom problems.
He revealed: “If I didn’t have sex for like … if I restrain myself for like two weeks, I start having wet dreams because my body’s like ‘get this out’.

“It’s not weird, it just means that I’m normal.”
Paul, who is dating speed skater Jutta Leerdam, revealed the nearest to a fight he has had sex is four days, adding: “That’s like a good amount.”

The American infamously blamed a wet dream on impacting his performance over Tommy Fury, which stands as his only boxing loss.
He was beaten via split-decision in Saudi Arabia by Fury, 25, and made the excuse just days after his only defeat in now 10 bouts.

Paul said: “I f***ed myself – literally – over.
I don’t actually even remember the dream. I literally woke up in a panic, like, ‘f***, f***, f***, f*** I was like ‘oh my god’.

“You have two weeks of testosterone built up and so the reason a wet dream happens is because your body needs to release that energy, it knows in your mind this is not good. I f***ed myself.

“But yeah it makes your legs weak. For the viewers, that’s why it’s bad, it makes your legs weak.”
Paul has returned with three wins since losing to Fury, while Tyson was last in the ring for a 2020 exhibition with Roy Jones Jr.