Kopech allowed two runs on five hits and five walks while striking out 10 over six innings for Triple-A Charlotte on Friday.
Kopech continues a career-long battle with command. Over his last seven games, he's walked 25 in 32 innings. The electric fastball gets all the headlines -- he's struck out 45 during that seven-game run -- but until he learns to command it consistently, the White Sox will not be in a rush to bring him up to Chicago.