White Sox call up catcher Zack Collins, option Seby Zavala – NBC Sports Chicago

Reinforcements needed? White Sox are good at catcher as is, Zack Collins says - Chicago Sun-Times

Why Zack Collins's Days on the White Sox Are Numbered - On Tap Sports Net

White Sox calling up catcher Zack Collins — report - Chicago Sun-Times

Seby Zavala Is Challenging Zack Collins For White Sox Catcher Of The Future

3 new potential backup catchers for the Chicago White Sox

White Sox catcher Seby Zavala making case to be in playoff plans – NBC Sports Chicago

Zack Collins, Seby Zavala White Sox catchers