Pivetta allowed four runs on five hits over 4.2 innings in a loss to the Nationals on Saturday. He struck out five and walked four.
Pivetta had held the Nationals scoreless through four innings, but things fell apart in the fifth. Trea Turner homered and Ryan Zimmerman doubled to drive in all four runs that Pivetta gave up. The rookie should get one more start this week before Aaron Nola rejoins the rotation next weekend.