If you've been keeping up with news about the Sons of Anarchy spinoff since it was first announced, then you're aware that details have only come around about as often as Jax saw his kids, and it shouldn't be too surprising that there isn't much information to go on besides Emilio Rivera being involved. And the actor really only confirmed something that fans were already expecting and hoping, but we couldn't ever really celebrate the return of Marcus Alvarez without anyone's assurance that he was actually going to appear on Mayans MC. Now we can, thanks to Rivera's post on his Instagram page