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According to Baseball America (via Pirates Prospects), the Bucs have signed several low-level minor-league free agents. Of those, the only one who might be significant is Taiwanese pitcher Jenn-Lei Liao. He's 20, and judging from this blog entry (which you can take with a grain of salt if you like -- I can't really vouch for it) and the video below, he's a really big dude at 6-foot-6 and 264 pounds, and he'll be a project. He appears to be worth keeping an eye on, however.