According to Reds.com, the Reds brought Elizardo Ramirez up from Class A Dayton today. The Lizard was optioned to Dayton before the All-Star break to keep him active while the major leaguers lounged around for a few days.
To make room on the roster, David Ross was put on the 15-day DL, which really just delays the real decision for a few days. If someone is to be sent down when Ross comes back, you'd have to guess it would be Jason Standridge, but it doesn't make a lot of sense to replace a pitcher with a catcher. I'm sure that Wayne Krivsky is trying to deal Jason LaRue and/or Javier Valentín before then.