CINCINNATI -- Right-hander Homer Bailey was surprised when the Cincinnati Reds put him on the 15-day disabled list Monday after a medical test found nothing more serious than inflammation in his pitching shoulder.
With a worn-down bullpen, the Reds weren't about to take any chances.
The Reds called up 24-year-old reliever Enerio Del Rosario from Triple-A Louisville to take Bailey's roster spot and help the bullpen get through the rest of the week. The Reds expect to make another move to add a starting pitcher on Friday, when Bailey would make his next start.
Bailey had tightness in his shoulder during a 4-3 loss in Cleveland on Sunday. The problem developed in the third inning, forcing him from the game. A medical test on Monday found no serious problem, but the Reds weren't about to carry two starters who had to leave games early because of a medical problem. Right-hander Johnny Cueto left his start on Saturday in Cleveland after six innings because of a blister on a finger.
The Reds were concerned that the inflammation in Bailey's shoulder could linger.
"It was more precautionary than anything," Baker said.
The 24-year-old Bailey hasn't been on the disabled list since 2008, when he sprained his right knee while pitching for Louisville. He's never had shoulder problems. A medical test on Monday found no serious injury.
"The MRI found no structural damage at all," Bailey said. "They just said there may be a little inflammation in the shoulder. [The doctor] wanted to do a cortisone shot, but I said that's not necessary. I just found out [about the DL] though I feel it's not necessary. I could understand missing one start, but I'm not that hurt."
During batting practice, Bailey wandered onto the field and Baker took him aside for a chat by the backstop.
Bailey is 1-2 with a 5.51 ERA in nine starts. His replacement in the rotation won't be left-hander Aroldis Chapman, who had to miss a scheduled start on Monday at Louisville because of a blister on his pitching hand.
Del Rosario will be making his big league debut. The right-hander was 1-1 with three saves and a 1.46 ERA in 20 relief appearances for Louisville this season, salvaging a career that turned around when he changed his delivery.
Del Rosario was nearly released at Class A last season. The coaching staff suggested he change his delivery, going to more of a sidearm approach, and everything improved. He made it all the way up to Louisville by the end of the season.
Bullpen coach Juan Lopez said Del Rosario was throwing in the low 90-mph range during spring training, which makes his drop-down delivery difficult on hitters.
"He's always had a good arm," Lopez said. "They were trying to do something different with him."