Cardinals pitcher Michael Wacha will undergo a follow-up MRI Monday, the team announced.
Wacha was placed on the disabled list last week due to a stress reaction in his right shoulder, and the MRI is to determine the extent of the healing so far. Wacha has been going through shoulder strengthening exercises since he last pitched June 17.
Monday's MRI may give the team a timetable for Wacha's return to action, and he told STLToday.com he already feels stronger thanks to rest.