Baseball players opting out of 2020 MLB season
Michael Kopech opts out: Ex-Boston Red Sox prospect traded for Chris Sale will not pitch for White Sox in 2020
White Sox' Michael Kopech 'fully invested and committed' to 2021, GM Rick Hahn says - Chicago Sun-Times
These 25 Players Opted Out Of MLB In 2020. How Are They Doing In 2021?
Michael Kopech: Chicago White Sox pitcher opts out of season
White Sox' Michael Kopech 'looks great and is excited to be back,' Lucas Giolito says - Chicago Sun-Times
The Baseball Kid: On Michael Kopech's decision to opt out of the 2020 season
How the White Sox can perfect Michael Kopech – NBC Sports Chicago
White Sox's Ethan Katz: Michael Kopech in 'a very good spot
Michael Kopech has opted out of the 2020 season - NBC Sports
Chicago White Sox right-hander Michael Kopech undergoes Tommy John surgery
Kopech opts out - South Side Sox
Chicago White Sox Pitcher Michael Kopech Opts Out of 2020 Season – NBC Chicago
Chicago White Sox's Michael Kopech motivated after 2 years off - ESPN
White Sox teammates' support for right-hander Michael Kopech remains strong - Chicago Sun-Times