The Giants recalled Whisenhunt from Triple-A Sacramento on Thursday, Alex Pavlovic of NBC Sports Bay Area reports.
Whisenhunt will start Thursday's game at Oracle Park against the Rockies. While the intention seems to be for it to be merely a spot start, Whisenhunt might tempt the Giants to keep him around if he pitches well. The lefty permitted two runs and struck out two over five innings in his lone start for San Francisco earlier this season, and he's collected a 4.42 ERA, 1.47 WHIP and 82:37 K:BB over 77.1 innings in 2026 at Sacramento.