Pittsburgh has already made one trade but another might be imminent. After adding Aramis Ramirez earlier in the day, the Pirates are working on a trade that would give them bullpen depth, according to FOX Sports' Ken Rosenthal.
Sources: #Pirates working on another trade. Believed to be for a reliever.
— Ken Rosenthal (@Ken_Rosenthal) July 24, 2015
Although there is not a specific team or name linked to the Pirates at this time, there are a handful of back end of the bullpen arms known to be available. Jonathan Papelbon, Aroldis Chapman, Craig Kimbrel, Francisco Rodriguez, Tyler Clippard, and Steve Cishek have all been consistently mentioned in trade rumors over the last few weeks.
However, if the Pirates are in pursuit of a middle relief arm instead of a top late inning reliever, there are still several available options. The Marlins are expected to move a handful of veterans and lefty reliever Mike Dunn (4.45 ERA through 30.1 innings) might be among them. Neal Cotts (3.46 ERA through 39.0 innings), Koji Uehara (2.67 ERA through 33.2 innings), and Craig Breslow (3.74 ERA through 33.2 innings) could also be moved.
Brad Ziegler, who has posted a 1.08 ERA and 3.33 FIP over 41.2 innings with the Diamondbacks, is drawing a notable amount of interest, according to ESPN's Jerry Crasnick. However, it might take a lot to acquire him.
While Pittsburgh's bullpen has been solid to this point in 2015, adding another arm would make the club's strength even better. The Pirates' bullpen has posted a 2.50 ERA this season, which ranks third in all of baseball.