Smith is starting at first base and batting seventh Sunday against the Marlins, Mark Zuckerman of MASNSports.com reports.
The 28-year-old was originally absent from Sunday's starting nine, but he was inserted into the lineup after Jeimer Candelario (thumb) was scratched. Smith has gone 8-for-24 with a double, a triple, a home run and three RBI in his past six games.