Edwin Jackson-Adam Dunn Three-Team Rumor

1:27pm: The Diamondbacks have not yet held three-way talks with the Nationals and White Sox, tweets Ken Rosenthal of FOX Sports.  Still, they will "not hesitate to deal Edwin Jackson if they get what they want."  ESPN's Buster Olney adds via Twitter, "The Nats have made progress in their effort to trade prospects for Jackson."

11:43am: It wouldn't be late July without rumors of intriguing three-team deals.  ESPN's Jayson Stark:

Rumblings continue to surface about a possible three-team deal involving the Nationals, White Sox and Diamondbacks that would send Edwin Jackson to Washington, Adam Dunn to Chicago and a bunch of young pitchers to Arizona.

We know the Nationals like Jackson and the White Sox like Dunn, so perhaps the D'Backs can facilitate a deal and further stock up on prospects.  Jackson, who is no stranger to three-team deals, has a 5.01 ERA, 7.0 K/9, and 4.0 BB/9 in 20 starts for Arizona.  On the plus side, he turns 27 in September, averages 94 mph on his fastball, and is signed for next year.  As he was with Dan Haren, D'Backs interim GM Jerry Dipoto might be forced to sell low on Jackson.