Diamondbacks Acquire Brad Ziegler

Long expected to add relief help, the Diamondbacks acquired right-handed sidearmer Brad Ziegler from the Athletics for first baseman Brandon Allen and reliever Jordan Norberto today.

Ziegler, 31, 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.

Allen, 25, hasn't done much in 209 scattered big league plate appearances since coming to Arizona two years ago in a trade with the White Sox.  He's logged a lot of time in Triple-A, and the Pacific Coast League is hitter-friendly, but he is hitting .306/.427/.579 there this year.

Norberto, 24, tossed 20 ugly big league innings last year and has been in Triple-A this year.  The lefty has a 4.25 ERA, 10.0 K/9, 4.8 BB/9, and 0.2 HR/9 in 48 2/3 innings.  He has good velocity for a southpaw and ranked 29th among D'Backs prospects before the 2010 season, according to Baseball America.

Buster Olney, Jon Heyman, Tim Brown, and Steve Gilbert reported various aspects of the story as it developed.