Jennings (ankle) remained limited in practice Friday, Nick Wagoner of ESPN.com reports.
Jennings dealt with ankle and then oblique injuries during the preseason, but there'd been no report of recent trouble until the Niners listed him Thursday on their first official injury report of the season. He's now been limited in back-to-back practices, setting up Saturday as the final chance for full participation before the Niners host the Jets on Monday.