The Niners gave Jennings a second-round restricted free agent tender Monday, Matt Maiocco of NBC Sports Bay Area reports.
Jennings (head) caught one of two targets for eight yards in Sunday's 34-31 NFC Championship Game win over the Lions.
The 49ers downgraded Jennings (concussion) to out for Sunday's game against the Rams.
Jennings (concussion) is listed as questionable for Sunday's game against the Rams, David Lombardi of The Athletic reports.
Coach Kyle Shanahan said Jennings (concussion) will be limited at Wednesday's practice, Lindsey Pallares of the 49ers' official site reports.
Jennings (concussion) has been ruled out for Sunday's game at Washington.
Jennings (concussion) didn't practice Thursday, Nick Wagoner of ESPN.com reports.
Coach Kyle Shanahan said Jennings (concussion) won't practice Wednesday, Cam Inman of The San Jose Mercury News reports.
Coach Kyle Shanahan said Saturday that Jennings, who won't play Monday against the Ravens, "has made steps" through the concussion protocol, Nick Wagoner of ESPN.com reports.
Jennings (concussion) has been ruled out for Monday's game versus the Ravens, Cam Inman of The San Jose Mercury News reports.