There's word today in USA Today that the baseball commissioner is considering suspending the New York Yankee if he does not cooperate with former senator George Mitchell's investigation into performance-enhancing substances. Giambi, who is on the disabled list at the moment with a foot injury, is in Selig's cross hairs because in another USA Today article earlier in the season, Giambi made a tacit admission to using such substances, referring to them as "stuff." But beyond that -- and this was his real sin, I suspect -- he suggested that all of baseball owes an apology for the steroids era. Now, Selig wants Giambi to elaborate for the Mitchell investigation. However, there's been nothing to suggest that Selig is granting Giambi immunity from further discipline from either the league or the Yankees as a result of whatever he might tell Mitchell.