Had Penny's injury only required him to miss one start, the Dodgers would have likely gone with Chan Ho Park, rather than make a roster move. Although Penny's MRI showed no serious problems, his mild shoulder tendinitis warranted a trip to the DL.
Stults was 5-6 with a 3.59 ERA at the Triple A level this year. Dodgers fans may recall him from last year, when he made five mostly mediocre spot starts.
Further complicating the situation is Hiroki Kuroda, who flew to Los Angeles to have his sore shoulder examined. Kuroda had been scheduled to start against the Reds on Wednesday but Derek Lowe will take his turn in the rotation. Lowe will pitch on his usual four days rest because of Monday's off day.
Doctor X -- the 'Baseball Medic' -- is an anonymous U.S. government trauma specialist with a Duke University sports medicine background and more than 20 years experience in emergency medicine. From time to time he considers MLB rumors, events and news reports as they pertain to baseball players' injuries, illnesses and various other disabilities, both on the field and off.
MLB Rumors editor Greg Fieg is a former sports news editor and award-winning writer whose bylines have appeared on the wires of the Associated Press and in numerous publications, including San Antonio Express-News, San Antonio Light, Houston Chronicle and Philadelphia Bulletin. He formerly was posted in various positions on the U.S.-Mexican border with Freedom Newspapers, and was a regular, independent contributor to United Press International.