The Giants claimed Cerantola off waivers from the Royals on Monday.
Cerantola, 26, has allowed six runs with a 7:10 K:BB over 5.1 frames at the big-league level this season. The righty reliever has been much better at the Triple-A level in 2026 with a 2.67 ERA and 43:16 K:BB across 30.1 frames. He'll begin his time in the Giants organization at Triple-A Sacramento.