"My understanding is he should be ready to go tomorrow," general manager John Mozeliak said on Thursday, "but I was also hopeful he'd be ready to go today. 'Day to day' is the phrase."
The club does not expect Holliday to need to go on the 15-day disabled list.
"I think the expectation is that he plays this weekend," manager Tony La Russa said after Thursday's 5-2 win over the Brewers. "But right now I don't know if that's tomorrow, Saturday or Sunday. But when you're messing around with backs, be sure, the best you can."