5:06pm: The Marlins are not close to sending Cantu to the Rangers, according to Clark Spencer of the Miami Herald (Twitter link). The Rockies have stepped up their bid for Cantu and the Giants are still involved.
4:21pm: The Rangers are interested in Cantu, but are "evaluating a number of bats," a source tells Jon Paul Morosi of FOX Sports (Twitter link).
3:55pm: The Rangers are "closing in" on a deal for Cantu, a source tells Gordon Edes of ESPNBoston.com.
3:30pm: The Rangers have asked about Cantu more than other clubs have, but they don't necessarily have an edge over the Giants or Rockies, according to Joe Capozzi of the Palm Beach Post (via Twitter).
7:44am: The Rangers are known to be seeking a right-handed hitting first baseman, perhaps a platoon partner for Chris Davis. USA Today's Bob Nightengale tweets that they are "in deep conversations" with the Marlins for Jorge Cantu, and "taking a close look" at the Cubs' Derrek Lee. They'd also like to add another starting pitcher and a lefty reliever.
Lee is the new name in the mix for the Rangers, though he and Cantu are used to being regulars. Neither player has hit like a regular first baseman this year - Cantu is at .260/.309/.412, and Lee stands at .251/.338/.391. Their contracts are significant - Cantu has $2.28MM remaining and Lee has $4.95MM. The Rangers have also been linked to players such as Ty Wigginton, Mike Lowell, and Wes Helms.
Nightengale's contention that the Rangers would like to add another starter is surprising. Four days ago, Ken Rosenthal of FOX Sports suggested on Twitter that a pitching surplus could make Rich Harden or Scott Feldman trade bait.