Lorenzen was removed from Wednesday's game against the Nationals due to an apparent injury, Anne Rogers of MLB.com reports.
Lorenzen was able to get through 2.1 innings in his first start back from the injured list before motioning for a trainer to come take a look at him. The Royals haven't yet specified what was bothering the right-hander enough for him to ask out of the game, though it may be related to the hamstring injury that kept him sidelined for nearly a month prior to Wednesday's outing.