12:01pm: The D'Backs announced they've traded Jackson to the White Sox for Hudson and pitching prospect David Holmberg.
11:54am: Jackson has been told he's been traded to the White Sox, tweets Yahoo's Tim Brown.
9:46am: Sox GM Kenny Williams has something big cooking, tweets Joe Cowley of the Chicago Sun-Times, and if he gets it done the Jackson deal is off. Meanwhile USA Today's Bob Nightengale tweets that the Sox would pay all of Jackson's salary if the deal gets done.
AOL FanHouse's Steve Phillips says the White Sox would try to flip Jackson to the Nationals in a Dunn trade but would be happy to keep him. MLB Network's Peter Gammons adds that the Nationals are "not that hot" for Jackson, though SI's Jon Heyman tweets that they love him. Rosenthal tweets that the deal is in the Nationals' hands, but Hudson would end up with the D'Backs either way. There's almost no chance Hudson makes his scheduled start tonight, tweets Cowley.
1:51am: If the two sides were to agree on a deal, the second prospect heading to the D'Backs would also be a pitcher, reports Jon Paul Morosi of FOX Sports (via Twitter).
1:14am: The White Sox are on the verge of acquiring Jackson, report Rosenthal and Morosi. Chicago would send Hudson and another prospect to the D'Backs in the proposed deal.
12:26am: The White Sox are looking into acquiring Edwin Jackson from the Diamondbacks, according to Ken Rosenthal of FOX Sports. Although the Sox have been linked peripherally to Jackson for much of the week, reports to date have indicated that Chicago's only interest in the right-hander would be as a chip to facilitate a three-way Adam Dunn trade. Rosenthal suggests, however, that the Sox may be interested in acquiring and keeping Jackson, rather than flipping him.
While Chicago covets Dunn, they are becoming less convinced they'll be able to work out a deal with the Nationals before Saturday's deadline. As such, they've been focusing more on bolstering their starting rotation. Rosenthal writes that the Sox are exploring other pitchers in addition to Jackson, as they look to replace the injured Jake Peavy.
Peavy's current replacement in the rotation, Daniel Hudson, could be a key piece in a potential trade for Jackson, according to Rosenthal.