From Buster Olney’s twitter (just moments ago):
Heard this: The Diamondbacks are asking the Tigers for pitchers Jacob Turner and Andrew Oliver.
From Buster Olney (two days ago):
Heard this: The D-Backs are in the process of exchanging names on Dan Haren. I don’t know if any team is necessarily deeper into talks than other teams, but the Detroit Tigers are serious in their interest on Haren. Some execs have serious doubts about whether a Haren deal can be made, because the D-Backs will need a big-time haul in return for the All-Star pitcher.