From "Manny to prepare for Dodgers in minors" (AP/ESPN.com):
Suspended outfielder Manny Ramirez will be sent to the minor leagues for a week to 10 days as part of a rehabilitation assignment prior to rejoining the Los Angeles Dodgers. [...]
Manager Joe Torre said before the Dodgers' game against the Colorado Rockies on Wednesday that Ramirez has been doing conditioning work on his own in California but may soon go to the team's spring training facility in Glendale, Ariz., to work out.
While the Dodgers are still developing a plan for his return, Torre said Ramirez would need some time in the minors to get ready to return to Los Angeles. [...]
Torre said he hasn't spoken with Ramirez in recent days but the team knows he has been working hard on his own to stay in shape. The manager also said he's looking forward to Ramirez going to the Dodgers' spring facility to get more baseball-specific work.
While the article isn't specific, we would assume Manny would spend his time in the minors at Triple-A Albuquerque. Get ready for a media circus, Isotopes!