Nothing's official yet (trust me, I was up half the night following what was happening
)
Probably waiting on the outcome of a physical, a trade to give them the money to sign him, or maybe both.
They are already about at what their payroll limit was supposed to have been, so I've heard they might trade Glaus (FA next year) and/or Washburn (too many starters) to free up cash.
Plus, they will have Garrett Anderson to resign next year, and might not have the money.