Slugger David Ortiz was discharged from Massachusetts General Hospital in Boston on Thursday after he underwent tests on his heart. Ortiz said he has been cleared of any heart abnormalities. "It's not my heart," Ortiz said. "The doctors ran all sorts of tests on me and my heart was not the problem at all. It was the lower part of my right pectoral muscle that, for some reason, was shaking. It scared me because I had never felt anything like that in my chest. But after all the tests, they said my heart was fine."