The Giants are expected to recall Whisenhunt from Triple-A Sacramento to start Sunday's home game against the Angels, Shayna Rubin of the San Francisco Chronicle reports.
With Trevor McDonald (elbow) recently landing on the injured list, the Giants will turn to Whisenhunt to fill the fifth spot in their rotation. The 25-year-old southpaw has given up four runs in 10.2 innings across his first two MLB starts this season, and he'll draw a favorable matchup on paper Sunday against an Angels lineup that's logged just a .656 OPS since the beginning of July.