12:07pm: The A's will receive first baseman Brandon Allen and reliever Jordan Norberto, reports MLB.com's Steve Gilbert.
11:53am: The D'Backs acquired Ziegler, tweets Yahoo's Tim Brown.
11:47am: The Diamondbacks are likely to acquire righty reliever Brad Ziegler from the Athletics, tweets SI's Jon Heyman. ESPN's Buster Olney tweeted the discussions earlier.
Ziegler, a 31-year-old sidearmer, is under team control through 2014 and is owed only $405K for the balance of the season. He has a 2.39 ERA, 6.9 K/9, 3.1 BB/9, and 71.6% groundball rate with no home runs allowed in 37 2/3 innings this year. As you might expect, he's a lot tougher on right-handed hitters.
