Cleveland's Victor Martinez's pinch-hit appearance after missing time with a pulled hamstring is hardly surprising considering that Martinez is a catcher.
Catchers -- as a general rule -- have the best conditioned hamstrings in baseball because they are constantly squatting. The squatting stretches the hamstring so much and so often that they seldom experience such an injury -- thus making Martinez's baserunning mishap highly unusual.
Expect Martinez to be back to playing regularly before the end of the weekend, or not much after. Ironically, Martinez doesn't even need his hammy to catch, just to run, which is not a big part of his game.
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.