Jennings (quad) returned to practice earlier this week, ESPNChicago.com's Michael C. Wright reports. Curiously, Jennings has been taking reps exclusively as the team's nickel back since rejoining practices, but the expectation is that he'll be one of the starters at corner back by the time Week 1 rolls around. Rookie Kyle Fuller has had a strong camp to this point, but he's probably not quite ready to displace either Jennings or Charles Tillman, both of whom have multiple Pro Bowl berths under their belts.