rehabbing in Arizona with Dane Dunning:
Kopech, who will be a vital part of the White Sox rotation in 2020, also is there after Tommy John, along with fellow pitchers A.J. Puckett, Andre Davis, Jimmy Lambert and Ryan Burr, as well as infielder Jake Burger, the White Sox top pick in the 2017 Draft who is working his way back from a pair of left Achilles tears.