I don't think O'Malley is a Tier 1 prospect and I bet Vera ML, SNA, and ITD against him. However, this is an excellent style matchup for him. He's in there against a guy with limited offensive wrestling, poor durability, and no striking defense who gets hit by a lot of kicks.
I can't be sure he won't roll an ankle again. If that happens, I'll take my L. In my opinion, things like that are pretty low percentage.