The stipulation in the Yanks contract that the Yanks plan on using to void Giambi's contract is this: "The player agrees to keep himself in the best possible condition."
Considering all the bad side effects caused by steroids I see how this would be no different then an athlete doing a bunch of drucks like coke and heroin and then getting their contract voided. If you ask me, the PA may be strong, but this may be a fight they can't win, especially from the PR standpoint.
On a sidenote, good god, did anyone realize Giambi is owed 84.5 million over the next 4 years.
Someone will still pick up Jason and hope he gets things figured back out. But sounds like he won't be a Yank next year which could open up the possibilities of sending Konerko to New York, I just don't know what the Sox would want.