6:04pm: GM Kevin Towers says he has made Mike Hampton an offer, according to Nick Piecoro of the Arizona Republic (on Twitter).
2:59pm: The D'Backs are "pushing hard" to sign Putz to a two-year deal with a club option for 2013, reports MLB.com's Steve Gilbert.
2:36pm: GM Kevin Towers thinks he'll acquire a closer this week, tweets Yahoo's Steve Henson. ESPN's Buster Olney tweets that "good progress" is being made with Putz on that front.
11:28am: The Diamondbacks have a vacancy at first base, and they're still looking to add a closer despite acquiring David Hernandez. The latest:
- The Diamondbacks are "looking hard" at Derrek Lee for their first base opening, tweets SI's Jon Heyman.
- The D'Backs are eyeing free agents J.J. Putz and Jesse Crain as possible closers, tweets Jack Magruder of FOXSportsArizona.com. They're not in on Brian Fuentes, reports MLB.com's Steve Gilbert.
