Bart was optioned back to Triple-A Sacramento following Sunday's win over Washington, Andrew Baggarly of The Athletic reports.
Bart was brought up to the 26-man roster Saturday and notched two singles, one RBI and a run scored in Saturday's win. He'll now continue to get reps in Sacramento while the big club is on break. It's possible that the backstop rejoins the 26-man roster for Friday's game against the Cardinals, but that decision will likely depend on whether Buster Posey (thumb) is ready to be activated from the injured list.