Yes. :yep Funny how they never had anything good to say about Timor Ibragimov until they found out he was fighting Mitchell! But Ibragimov was coming off a loss and hadn't fought in a year, so he really isn't any better an opponent than Guinn. In fact, Timur is less dangerous. Guinn at least has one-punch KO power.
But the Gavern stoppage was by cut, and it may very well have been a head butt. Wilson was going no less than even at the time of the stoppage.
If Amir Mansour can UD Guinn this is unlikely to be competitive imho. The drama is whether or not Boystov can get a KO here.