Pivetta was optioned to minor league camp on Tuesday, Todd Zolecki of MLB.com reports.
Pivetta allowed two runs, struck out seven and walked two in eight innings this spring. He also pitched four innings for Canada against Columbia in the World Baseball Classic, allowing one run on five hits with a strikeout. He will open the season in the rotation at Triple-A Lehigh Valley and should get a look with the Phillies later this year.