Orioles right-hander Miguel Castro will audition to join the growing list of suitors to take over the vacant rotation spot left by right-hander Chris Tillman when he starts Wednesday's matinee with the Philadelphia Phillies.
Castro last pitched on Thursday with 4 2/3 scoreless innings of relief of Tillman, who retired just four batters and struggled badly again before being placed on the 10-day disabled list with a lower back strain.
That outing for Castro brought into focus both the value he has a lockdown, inning-eating reliever and the promise that he has long held in the Orioles' eyes to be a starter.