Brad Peacock is expected back in Houston on Monday for medical re-evaluation as he continues to struggle in his recover from a left intercostal strain.
Peacock threw two scoreless innings and 37 pitches for Class AA Corpus Christi on Thursday, but the Astros said he had an unspecified setback afterward that would require his return to Houston.
Manager A.J. Hinch had no updates Sunday on Peacock. Intercostal muscles run between the ribs and help form and move the chest wall.
david.barron@chron.com