I think someone mentioned earlier that Rozenstruik will be able to land body shots on Overeem similar to what Olenik did.
Rozenstruik has attempted 0 body shots in his UFC fights. And watching Rozen vs Kovalev in RIZIN, I only spotted one jab to the body at range in a fight where he maybe threw 100 strikes or more. I think it's safe to say that Rozenstruik is a head hunter. Like Ladd kick catching, I wouldn't rely on Rozenstruik working the body at all. Again, not saying it's impossible, but I think a trap some people fall into is that they see a weakness for a fighter they want to fade, and then assume because the weakenss is so evident that the fighter they want to back will in fact attempt certain techniques to exploit it.
Maybe if you're taking a big dog and want to put that in as a potential PTV, that's fine. But with closer lined fights and favorites, it's probably a bad idea to let those assumptions affect confdience.
I'm on Overeem here, since I think he is going to try to grapple, and Rozenstruik really needs to put Overeems lights out early to win. Albini was able to get Rozen to the fence easily multiple times in a clinch and Rozen didn't seem to know what to do there, just kinda resting. It doesn't seem like he's an active clinch striker. I don't know much about his kickboxing background, but I'm guessing he didn't fight much muay thai (someone correct me on this if I'm wrong) and is used to having a ref break up clinches so he can headhunt with his boxing. People want to compare Rozen to Francis, but see how Francis actively and powerfully pushed Overeem around versus Rozen's lazy clinching versus Albini and you'll see a few big differences (size, strength, and even technique).
Well timed cilnching neutralizes boxing. We see this in muay thai all the time where good fighters get away with little head movement by just mixing clinching with a long guard and leanbacks. We saw this recently in MMA with Till/Gastelum. Of course this is heavyweight and the normal rules don't apply, but I'll take the guy with more tools whose chances of winning continually increase as time ticks away, rather than the Rd1 KO threat. For those that do like Rozenstruik to KO Overeem early, why not just pay a bit extra and get the under 1.5 rds. This line also factors in the real possibility that Overeem lands a TD and finds a finish there.