Lorenzen was scratched from his scheduled start Saturday against the Mets due to an illness.
Lorenzen's illness will put an early end to his first half, and he'll carry a 4.61 ERA with a 1.30 WHIP through 99.2 innings into the All-Star break. While he recovers, Angel Zerpa will start on the mound Saturday in what is likely to be a bullpen game for the Royals.