Rizzo, who was scratched from Friday's lineup against the Cardinals, is dealing with lower-back tightness, Marly Rivera of ESPN.com reports.
He missed four games due to lower-back stiffness in early July, as Rivera notes. For now it seems like Rizzo is day-to-day with the issue, and the Yankees have enough depth to give him a few days to get right if necessary. Aaron Hicks was added to Friday's lineup after Rizzo was scratched.