The Diamondbacks optioned Jameson to Triple-A Reno following Wednesday's 2-0 win over the Cubs.
Jameson made one appearance after getting reinstated from the 15-day injured list Sunday. He allowed two earned runs on three hits and a walk while not recording a single out in Monday's 7-0 loss to the Cubs. Jose Cabrera was recalled from Triple-A Reno in a corresponding move Thursday.