Pivetta (forearm) struck out seven and allowed two hits and one walk over 4.1 scoreless innings in a rehab start with Triple-A El Paso on Sunday.
Pivetta took a step up in competition Sunday after he made the first two starts of his rehab assignment with Single-A Elsinore. The right-hander had no trouble against the Triple-A competition, tossing 44 of 64 total pitches for strikes over his scoreless outing while sitting around 93 mph with his fastball for most of the game. Pivetta -- who has been on the shelf since April 14 while recovering from a right flexor strain -- will presumably need one more rehab start before rejoining the San Diego rotation.