Twins catcher Joe Mauer acknowledged for the first time on Friday that he went to the Mayo Clinic in Rochester in late April for a battery of tests. Mauer said he went to Rochester shortly after visiting his specialist at Johns Hopkins Hospital in Baltimore on April 18 to make sure he didn't have any more serious problems. Mayo's findings were similar to what Minnesota's medical staff diagnosed, which was bilateral leg weakness. Mauer was diagnosed with that April 14. About the same time, he also came down with a viral infection that caused him to lose 15-20 pounds and feel even weaker. "We just wanted to make sure everything was good," Mauer said. "We went down there and it was a good visit. We tried to keep [the visit] as quiet as we could. "That's kind of what they do. ... They check for everything," he said. "It was a good visit."