I actually quite like this fight. Knockout one way or the other. Could make for a great scrap and it makes sense for Zhang, if not for Helenius.
Ive said before Zhang needs to cash out (and he's done nothing to deserve a title shot), and though Hrgovic has more upside, this is a dangerous fight for Hrgovic. Hrgy Bear(™anjawnaymiz ) still keeps his head too static and Zhang, if he can survive long enough, could really take advantage of that.
He called out Hrgovic. Other fighters like Hunter and Parker have been avoiding Hrgovic, and Zhang is much better than Filip's last opponent. So the fight can and should be made.
My guesses are 44 for Ortiz and 38 for Zhang. (I only trust Zhang because he's been competing internationally since 03, whereas Ortiz pretty much only fought nationally and most reports suggest he is two years older than he says)
In the ring, for a couple of rounds Zhang can hang. But after that for anyone half decent beating him won't be a thang. What you think of that @Holler?