Smith was activated from the bereavement list but isn't starting Monday's game against the Nationals, Anthony DiComo of MLB.com reports.
Smith will be available off the bench in Monday's contest, but Jeff McNeil will shift to left field while Jonathan Villar starts at third base. Across his six appearances prior to his absence, the 26-year-old went 4-for-13 with a double, three RBI and a run.