The Baltimore Orioles have shut down pitching prospect Dylan Bundy indefinitely, according to a Baltimore Sun report.
Dr. James Andrews, who examined Bundy, attributed the pain in the 22-year-old's shoulder to an unusually large buildup of calcium, the magnitude of which he said he had never seen before.
"It makes it more disappointing that it’s a rare case ...so it’s a little scary ...because we can’t say why it happened, how it happened," Bundy told the Sun.
The No. 4 pick in the 2011 amateur draft, Bundy was once considered one of the most promising young pitchers in baseball. He made his debut in 2012 as a 19-year-old, but underwent Tommy John surgery in the summer of 2013.
He returned to the mound in 2014, recording a 3.27 ERA with 37 strikeouts and 16 walks over nine starts in Single-A, before being placed on the disabled list in August with a strained lat.
Bundy said he had been making strides this spring before undergoing an MRI to address the soreness he felt in "one of the cuff muscles" in his throwing arm following a start.
He has not pitched since May 21 and recently underwent an MRI arthrogram on his shoulder as a precaution.
Bundy recorded a 3.68 ERA with 25 strikeouts and five walks over eight starts this year for the Double-A Bowie Baysox.
The Sun also reported Monday that Bundy's Baysox teammate, pitcher Matt Hobgood, has been shut down for the season and will have right shoulder surgery.