Flaherty didn't participate in Tuesday's team workout after he was sent in for a medical evaluation of his right shoulder, Katie Woo of The Athletic reports.

EDGE Analysis

The results of Flaherty's tests aren't yet known, but any arm-related injury for a pitcher this close to Opening Day is obviously concerning. The Cardinals are hoping to gain more clarity on Flaherty's health situation in the next few days, but even if he's diagnosed with minor soreness, it could delay his throwing schedule enough to put his availability for the start of the season in jeopardy.