Morejon (shoulder) will join Triple-A El Paso on Tuesday to begin a rehab assignment, Jeff Sanders of The San Diego Union-Tribune reports.
Assuming the Padres are keeping Morejon in the bullpen, the lefty doesn't figure to need more than one or two rehab appearances before being activated. Morejon allowed two earned runs in 4.2 innings of relief before going on the injured list June 23 with shoulder inflammation.