Perez (hamstring) will begin a rehab assignment with Triple-A Jacksonville on Thursday, Stephen Strom of Marlins Radio Network reports.
Perez is slated to throw 3-to-4 innings and/or 50 pitches in the outing. It will be the first start for Perez since he went down with a right gracilis strain more than two weeks ago. Initial estimates pegged Perez's absence to last as long as eight weeks, but it appears he'll have a good shot to be back before then.