Matt Garza left his start against the St. Louis Cardinals in the fourth inning Wednesday because of a bruised right thumb.
Wei-Chung Wang replaced Garza.
The Milwaukee Brewers said Garza is day to day. He said after the game there was no doubt he'd be ready for his next start.
"I'm going to make sure I'm OK by then," Garza said. "I'm not here to skip a start, I'm prepared to pitch. I want to get right back out there."