Jason Hammel to sign with Chicago Cubs - ESPN
Cubs Sign Jason Hammel - MLB Trade Rumors
Jason Hammel 0-3 for A's after 4-1 loss to Rangers (w/video)
Oakland Athletics reportedly not offering Jeff Samardzija in trades - Sports Illustrated
Free Agent Profile: Jeff Samardzija - MLB Trade Rumors
A's get Sam Fuld for Tommy Milone - ABC7 Chicago
Jeff Samardzija traded to the Chicago White Sox - Lone Star Ball
Why Isn't Jason Hammel a Mariner? - Lookout Landing
Athletics finalize blockbuster trade with Cubs
MLB trade rumors: Cubs targeting A's utility man Ben Zobrist