In what has to be about the most unsurprising other-shoe-drop since the Michael Jackson child abuse allegations, the San Francisco Chronicle reports (via ESPN.com) that San Francisco Giants slugger Barry Bonds (unknowingly, he alleges) used performance-enhancing drugs supplied to him by his trainer, according to sealed grand jury testimony leaked by prosecutors obtained by the newspaper. Coupled with Jason and Jeremy Giambi’s admissions that they used steroids supplied by Bonds’ trainer, things aren’t looking good for baseball’s image.

A larger issue here, pointed out by David Pinto, is that these leaks are likely to undermine the grand jury system—not just in this case, but in a lot of other cases too. Given that the Justice Department is not only responsible for prosecuting this case, but investigating grand jury leaks (which, pretty much by definition, can only come from prosecutors, as no other parties have unrestricted access to the transcripts), the “fox guarding the henhouse” aspect of these leak investigations does not fill one with much confidence about the integrity of the grand jury system.

Update: Steven Taylor questions the sanity of Bonds’ reported decision to use unknown substances (steroids or not) obtained from a guy who lived in his car. No kidding. David Pinto recommends reading the whole thing for a glimpse into Bonds’ mindset, and asks the $64,000 question—what does Bud Selig do about these revelations?