Munoz was released by the Diamondbacks on Monday.
Munoz (calf) has gone 5-for-25 with a double, a walk, three RBI and two runs in six games since being reinstated from Triple-A Reno's 7-day injured list May 16.
Munoz (calf) was reassigned to minor-league camp Sunday.
Munoz suffered a strained right calf while swinging at a pitch Friday.
Munoz (not injury related) arrived at camp Sunday and participated in his first workout Monday, Nick Piecoro of the Arizona Republic reports.
Munoz is not yet at training camp due to visa issues, Nick Piecoro of the Arizona Republic reports.
Munoz signed a minor-league contract with the Diamondbacks on Tuesday.
Munoz was outrighted to Triple-A Lehigh Valley on Wednesday.
Munoz was optioned to Triple-A Lehigh Valley on Friday.
Munoz was recalled by the Phillies on Friday, Todd Zolecki of MLB.com reports.