When the Orioles officially added new pitcher Wynn Pelzer, acquired in trade yesterday, to the Bowie Baysox roster tonight, he took the spot vacated by right-hander Chorye Spoone, who went on the disabled list.
Spoone, who is on the O's 40-man roster, is dealing with some shoulder fatigue.
The 24-year-old underwent shoulder surgery in September of 2008 but this setback is not considered major at all.
"It's precautionary right now," O's assistant director of player development, Tripp Norton, said by phone tonight. "We backdated this a couple of days and he should be able to pitch again when he is eligible to come off the DL next Thursday."
Spoone, an eighth-round pick in 2005, is 7-5, 3.86 in 21 Double-A starts this year. He gave up four runs over 4 1/3 Monday at Akron in his last start.