The Athletics are considering using Drew Pomeranz or Jesse Chavez to make a spot start next week.
Athletics optioned RHP Dan Otero to Triple-A Sacramento.
Athletics first base prospect Matt Olson went 2-for-4 with a home run and a walk for High-A Stockton on Wednesday.
Jeff Samardzija was knocked around for seven runs over 3 2/3 innings Wednesday in a loss to the Mets.
CBS Sports' Jon Heyman reports that Jon Lester signing with the Red Sox this offseason is seen as a "long shot."
Josh Donaldson is not in the Athletics' lineup Wednesday.
Nick Punto (hamstring) has yet to swing a bat since being placed on the disabled list nearly three weeks ago.
Susan Slusser of the San Francisco Chronicle reports that the Athletics considered removing Jason Hammel from the rotation before ultimately deciding to just skip his turn.
Derek Norris will not play Wednesday due to a minor back issue.
Coco Crisp singled, tripled and drove in three runs as Oakland held off the Mets in a 6-2 Tuesday victory.
Scott Kazmir went six innings in Tuesday's 6-2 victory over the Mets, giving up one run on four hits.
The Athletics will skip Jason Hammel's next turn in the rotation.
Craig Gentry (hand) went 0-for-4 with two strikeouts Monday in his first minor league rehab game with Triple-A Sacramento.
Craig Gentry (hand) will begin a minor league rehab assignment Monday with Triple-A Sacramento.
Nate Freiman clobbered a pair of home runs in a losing effort against the Braves on Sunday night.