A little over a week ago, the Detroit Tigers announced that Daniel Schlereth's April 21 demotion was voided and he was currently on the big club's disabled list with left shoulder tendinitis. He is eligible to be reinstated whenever deemed healthy because the date is retroactive to when he was initially sent down.
Schlereth was scheduled to throw a bullpen on Friday, but he suffered a setback when he was only 15 pitches into a 30-pitch session [via MLIVE]:
Details of the setback remain unclear, but Tigers head athletic trainer Kevin Rand confirmed that Schlereth had his left throwing shoulder examined Tuesday morning.
He was scheduled to visit the Steadman Hawkins Clinic in Denver.
Schlereth has a 10.29 ERA in seven innings of work this season. After being demoted, Schlereth admitted that he had been pitching through shoulder pain, so he never made an appearance with the Mud Hens, allowing his option to be voided.