Jacobs was limited Wednesday, but his return to a full session Thursday paves the way for him to continue to head the Raiders' backfield Sunday against the Bears. With fellow RB Peyton Barber sidelined by a toe injury and change-of-pace back Kenyan Drake having logged limited touches in Week 4, Jacobs figures to be busy this weekend against a Chicago defense that has allowed an average of 112.0 rushing yards per game to date.