I don't think Mir can even get JDS against the cage letalone to the ground. On the feet this is pretty one-sided, goodnight Frank.
The good news for Mir is I'm sure his wrestling is top notch having been training for Velasquez, and if he can make JDS chase him and clinch with him he'll do okay.
But really if Junior connects once with one of his overhand sledgehammers Mir's done.
I doubt this fight will make it past the first half of the first quarter.