Jacobs (quadriceps/hand) remained limited at practice Thursday, Paul Gutierrez of ESPN.com reports.
With back-to-back limited practice sessions Wednesday and Thursday, Jacobs will probably have to practice fully Friday in order to avoid a Week 15 injury designation. That said, there's been nothing to suggest that the Raiders' top back -- who has been listed as questionable in advance of his team's last three games -- won't continue to tough things out this Sunday against the Patriots.