Tyson was once a boxer that every boxer is feared to fight with because of how dangerous he is. Well, that was the Mike Tyson in his prime, and the Mike Tyson that we are seeing currently.
Body? Yes, his body is still in shape. The problem with this one is the age gap. We know how age is a factor in sports right? That huge age gap has a lot of disadvantages for Tyson while it will be an advantage for Jake Paul. Stamina, Endurance, Footwork, etc. Let's also include the fact that Jake Paul, even though he's not a boxer has been into some fights for the past year I think (can't remember).
Tyson being an underdog is no surprise because like I said, the age gap is a big factor not only in boxing but in the the world of sports. I love the man even though he bit Holyfield's ears during their fight way back decades ago, but I will side with Jake Paul with this. Experience is a factor, but age is a bigger factor.