Milwaukee planned to call up a starter from Triple-A to take the rotation spot of Wily Peralta, who could be out at least a month with a left oblique injury.
The Brewers are also awaiting the outcome of reliever Will Smith's appeal of an eight-game suspension for having a foreign substance on his arm during a loss last week in Atlanta. The team wouldn't be able to replace Smith during a suspension.
Milwaukee was off on Thursday. Starting shortstop Jean Segura could return on Friday against Arizona from a broken finger.
Catcher Jonathan Lucroy could return early next week from a broken toe.