Not much more info than this, at the moment:
Micker Adolfo will undergo Tommy John surgery in the coming weeks after suffering a setback during his throwing program.
— Chicago White Sox (@whitesox) July 10, 2018
Given the Mickey Mousing with the surgery overall, let’s trust that this Chicago White Sox Twitter feed notion that his right elbow surgery will be in “coming weeks” is some kind of mistweet. If Adolfo is hurt with a “setback,” the surgery needs to be ASAP in order to get back on the field as early as possible in 2019.