Chances are very low considering this is going to look almost identical to the Leites fight. Silva simply won't go to the ground with Maia and Maia won't want to stand so there is going to be a lot of nothing going on. Leites wouldn't get involved even when it was obvious he was losing, maybe Maia will. If he does he'll get knocked out for his troubles but Silva isn't stupid, he wouldn't risk it with Leites, he sure as hell won't with someone even better at grappling.
Not saying Silva should either, just saying don't expect this to be a barn burner.