Cardinals pitcher Michael Wacha threw 30 pitches in a bullpen session Saturday, St. Louis Baseball Weekly reports.

"I don’t know what percentage it was, but it wasn’t full speed or anywhere near it," said Wacha. "It was just first time back on the mound, getting a feel for the mound and the mechanics, as well."

Wacha, who threw fastballs and changeups in the session, is scheduled for a medical evaluation Monday. His next step will likely be determined by that doctor's visit, but he's likely in line for a few more bullpen sessions before potentially going out on a rehab assignment.