The Cards hope and expect that Holliday will need only the minimum 15 days before he can return. Neither Mozeliak nor manager Tony La Russa would divulge who will take Holliday's roster spot, or even whether it would be a hitter or a pitcher. Mozeliak acknowledged that it's possible that the addition could be a player not currently on the 40-man roster.
Holliday first felt something amiss in his leg in a May 18 win against the Astros. He played the following weekend as the team's designated hitter in Kansas City, but aggravated the condition in the May 22 series finale against the Royals. He didn't start again for the next week before returning to the lineup Monday night against San Francisco. He was then scratched from Tuesday's game shortly before it started with a recurrence of the condition.
"We were aggressive," Mozeliak said. "We tried. And he still wasn't getting to the point where we're comfortable with just letting him continue to go through this same pattern. So now we'll give him a few days, try to calm it down, and we're very optimistic that after 15 days, he'll be ready to go.
"Nothing's changed, and frankly it looks like it's getting better, but it's still something he feels. And rather than push it as we sit here on June 1, it just doesn't make a lot of sense. Conservative treatment we will now try, after we tried to be aggressive. It's still something that he notices, and it's just not going away."
Allen Craig and Jon Jay will likely split time in left field during Holliday's absence. Lance Berkman slides into Holliday's customary No. 4 spot in the St. Louis batting order.