Matt Treanor suffered a lower abdominal strain on Monday night, creating catching need for the Marlins. Treanor is expected to go on the DL on Tuesday, and the team is expected to select the contract of John Baker from Triple-A Albuquerque. Paul Hoover and Baker, for now, are in line to split catching duties. Even before Treanor's injury, the Marlins were eying veteran catching help. Names to watch are David Ross (Reds), Miguel Olivo (Royals) and Yorvit Torrealba (Rockies). Nationals veteran Paul Lo Duca doesn't appear to be in the mix. His throwing arm is an issue.