Jennings (concussion) was estimated as a full practice participant on the Patriots' injury report Wednesday.
Jennings has been clear of concussion protocol for a week now, but he was kept on injured reserve for the AFC Championship Game at Denver to save a roster spot. With Rhamondre Stevenson and rookie second-rounder TreVeyon Henderson both still healthy, there's no guarantee New England will activate Jennings for the Super Bowl.