MLB sources told the Tribune's Phil Rogers that the Diamondbacks played Conor Jackson in left field Monday in order to showcase him for a potential trade to the White Sox.
The Diamondbacks aren't giving up Jackson for Jose Contreras and we can rule out Javier Vazquez as a possibility -- he's in Chicago because he demanded a trade out of Arizona -- so it looks like they're targeting Jon Garland or maybe even John Danks. The White Sox would probably want a quality prospect along with Jackson in return for Danks. Even that might not be enough.