Palumbo (undisclosed) is set to pitch in Sunday's Cactus League game versus the Reds, Maria I. Guardado of MLB.com reports.
Palumbo is expected to pitch an inning or two as a reliever behind Sammy Long in the Giants' third game of spring training. He was limited to 6.2 innings last season with Triple-A Round Rock, so it's likely the 27-year-old will begin 2022 at the same level with Triple-A Sacramento. He's often worked as a starter in the minors, but the southpaw may have to settle for a relief role if he works into the Giants' major-league plans.