Rasmus met with team medical personnel on Monday. In the evaluation, it was determined that he's dealing with nothing more serious than a muscle strain in his midsection, which counts as a relief to both player and team.
"I knew it was kind of iffy [to play Tuesday], but I felt good," he said. "I guess we're just giving it another day just to make sure. Because I'd definitely rather be out another day than [longer]."
Manager Tony La Russa was making no guarantees that Rasmus will return on Wednesday, but still acknowledged that it should happen sooner than later.
"I know he's feeling better," La Russa said, "and when he's green-lighted, then we'll figure out when to play him."