The Diamondbacks made another move on Sunday, just hours before the trade deadline: Arizona acquired Oakland A's reliever Brad Ziegler.
Ziegler has had an excellent season for the moribund Athletics, throwing 37.2 innings of work with an ERA of 2.39. He hasn't accumulated many holds or saves, as he was mainly used out of the bullpen in the sixth and seventh innings.
When playing for a contender, Ziegler will immediately fill a more important role, competing with Sam Demel for 7th inning duties.
The price the Diamondbacks paid wasn't cheap -- they gave up first baseman Brandon Allen and minor league reliever Jordan Norberto in the exchange.
Both Allen and Norberto have had recent major league experience, with Allen currently playing first base for Arizona and Norberto having pitched 20 innings for the big league club in 2010.
With the loss of Allen, the Diamondbacks will have to look into all their options, whether that means Xavier Nady or the inevitable call-up of Paul Goldschmidt or both.