Perez was placed on the 15-day disabled list Wednesday due to a right rotator cuff strain.
Perez labored through 4.1 innings in his most recent start Monday and he was still dealing with some soreness Tuesday. It was initially reported that he was dealing with a sore triceps, but the Braves have since diagnosed Perez with a shoulder injury. There is no timetable for his return at this point, but the Braves have recalled John Gant to fill his roster spot for the time being.