Mendez did not make the Rangers' 30-man roster, Evan Grant of The Dallas Morning News reports.
Mendez (suspension) was reinstated by the Rangers on Wednesday and added to the 60-man roster.
Mendez (shoulder) was placed on the suspended list by the Rangers on Wednesday after seeing unauthorized outside medical attention, T.R. Sullivan of MLB.com reports.
Mendez is dealing with shoulder inflammation, though the issue isn't considered serious, T.R. Sullivan of MLB.com reports.
Mendez (1-0) allowed one run on one hit while striking out six over 2.1 relief innings Saturday to pick up the win over the Orioles.
Mendez will throw out of the Rangers' bullpen in multiple-inning stints, T.R. Sullivan of MLB.com reports.
Mendez was recalled from Triple-A Nashville on Thursday.
Mendez (elbow) was activated from the 60-day injured list and optioned to Triple-A Nashville on Monday.
Mendez (elbow) was transferred to Triple-A Nashville to continue his rehab assignment.
Mendez (elbow) started a rehab assignment with the Arizona League Rangers on Friday.