Knizner went 2-for-4 with a double and a run scored in Monday's 7-3 win over Atlanta.
Knizner hit a double in the second inning and added a single in the sixth before coming around to score. The veteran catcher signed with San Francisco on Aug. 11 and has appeared in 11 games, slashing .222/.300/.407 with a home run and two additional runs scored across 30 plate appearances.