Muzziotti cleared waivers and was outrighted to Triple-A Lehigh Valley on Tuesday.
Muzziotti was designated for assignment by the Phillies on Wednesday, Matt Gelb of The Athletic reports.
Muzziotti was optioned to Triple-A Lehigh Valley on Sunday, Todd Zolecki of MLB.com reports.
Muzziotti (kneecap) will start in left field and bat ninth in Wednesday's Grapefruit League game against the Twins.
Muzziotti (knee) was recalled and placed on the 60-day injured list with a partially torn right patellar tendon Friday.
Muzziotti suffered a season-ending injury Saturday and is expected to be placed on Triple-A Lehigh Valley's injured list within the next few days, Todd Zolecki of MLB.com reports.
The Phillies optioned Muzziotti to Triple-A Lehigh Valley following Wednesday's 3-1 win over Atlanta.
The Phillies recalled Muzziotti from Triple-A Lehigh Valley ahead of Wednesday's game in Atlanta.