Perez
Hill
Hill's arm was examined Wednesday at the Mayo Clinic in Rochester, Minn., and the team said doctors found no structural damage. Doctors attributed his pain to irritation of his forearm muscles, and they recommended rest and rehabilitation.
Hill, 1-5 with a 5.83 ERA in 12 starts, gave up eight runs in three innings during Tuesday's 8-3 loss to the Los Angeles Angels. The move to put him on the DL was retroactive to Wednesday.
Perez, who had been on the DL since June 11 with tendinitis in his left shoulder, is 2-5 with a 4.09 ERA. He is scheduled to start against Baltimore on Friday.
Washington also moved first baseman Nick Johnson from the 15-day to 60-day disabled list. Johnson had surgery on Tuesday on his right wrist and is expected to miss the rest of the season.
Nationals place 1B Johnson on 15-day disabled list
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