The Blue Jays optioned Frias to Triple-A Buffalo on Wednesday.
Frias was recalled from Triple-A Buffalo prior to Friday's game against Atlanta.
The Blue Jays claimed Frias off waivers from the Diamondbacks on Saturday and optioned him to Triple-A Buffalo.
The Diamondbacks designated Frias for assignment Thursday.
The Diamondbacks reinstated Frias (shoulder) from the injured list Thursday and optioned him to Triple-A Reno.
The Diamondbacks transferred Frias' (shoulder) rehab assignment to Triple-A Reno on Tuesday.
Frias (shoulder) will begin a throwing program this week, Theo Mackie of The Arizona Republic reports.
Frias was optioned to Triple-A Reno by the Diamondbacks on Tuesday.
The Diamondbacks recalled Frias from Triple-A Reno on Friday.
Arizona optioned Frias to Triple-A Reno on Thursday.