WASHINGTON -- The Nationals placed right-hander Shawn Hill on the 15-day disabled list, retroactive to June 25, with a right forearm strain and activated left-hander Odalis Perez from the 15-day DL. Washington also transferred first baseman Nick Johnson from the 15-day to the 60-day DL.
Hill, 27, last pitched on Tuesday against the Angels. He gave up eight runs -- six earned -- in three innings. Hill went to the Mayo Clinic the next day. A bone scan and an MRI were performed on Hill's forearm. The doctors found no evidence of structural damage and attributed Hill's pain to irritation of the right forearm muscles. The doctors advocated a period of rest, followed by rehab and a throwing program.
On Tuesday, Johnson, 29, had surgery to repair a small split tear in a ligament on the ulnar side of his right wrist. He is expected to miss the rest of the 2008 season and be 100 percent for Spring Training.
Perez, 30, will get the starting nod on Friday night against the Orioles at Nationals Park. Perez was 2-5 with a 4.09 ERA in 13 starts with Washington before being placed on the DL on June 14 with left shoulder tendinitis.
Bill Ladson is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.