The specific reason for injured OF Rocco Baldelli's continuing presence on the disabled list remained a mystery Monday as the Devil Rays waited for the results of unspecified medical tests performed last week. Presumably, the tests had to do with Baldelli's injured left hamstring, which has kept him on the disabled list since May 16. When asked what kind of tests were performed, Manager Joe Maddon said: "I don't know." He did say that the results of the tests should be available by the end of this week, at the latest. And Maddon remained optimistic that Baldelli's season might not be over. "I still believe there's a chance to get him back at least possibly to DH at some point," Maddon said. "That may be something that we can do, but right now, we just don't know. We just don't know until we get the results of these tests."