The Diamondbacks will add at least one reliever and could add a starter, too, according to Ken Rosenthal and Jon Paul Morosi of FOX Sports. The Giants, who lead Arizona by 3.5 games in the NL West, acquired Jeff Keppinger tonight and D'Backs GM Kevin Towers is expected to respond before long.
The D'Backs "would love" to acquire Kerry Wood, who can block any trade the Cubs propose. Arizona also has interest in Todd Coffey, Jason Isringhausen and Jason Frasor. John Gambadoro of Sports 620 KTAR reported last week that the D'Backs would consider Isringhausen, Wood and possibly Frasor.
Though the D'Backs are looking for starting pitching, Ubaldo Jimenez, Hiroki Kuroda and Aaron Harang are unlikely to be traded within the NL West. For more on what the D'Backs, Giants and other contenders are looking for, check out Tim Dierkes' analysis from earlier today.