Orioles place three on disabled list
Johnson, who has a back injury, was put on the DL retroactive to March 23. Wada (left elbow) was retroactive to March 22 and Betemit (right knee) to March 26.
Baltimore also selected the contract of outfielder Steve Pearce from Triple-A Norfolk on Sunday, a day after the Orioles said he had made the Opening Day roster.
Copyright 2013 by The Associated Press
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