The next nave bay does not have a chapel, but instead a vestibule for the sacristy. Over the sacristy door used to be a statue of a young St John the Baptist in 15th century Florentine style. It had been attributed to Donatello, which seemed likely because of both the style and the subject, but is now attributed to Michelangelo. This ascription relies on documentary evidence. This statue is now on display in the church's museum, with other masterpieces from the church such as two statues of the young Gian Lorenzo Bernini.