Pivetta will start against Minnesota on Wednesday, Chris Cotillo of MassLive.com reports.
Pivetta is one of six pitchers that will start for Boston during the first week of the Grapefruit League, as the Red Sox will work with a six-man rotation early in camp. They have not committed to the six-man rotation for the regular season, so Pivetta is not assured of a spot in the rotation. However, he's out of minor-league options, so it appears he will make the Opening Day roster.