Jackson (hamstring) remained sidelined at practice Thursday, Jamison Hensley of ESPN.com reports.
With Jackson having yet to practice in any fashion since injuring his hamstring in the Ravens' Week 4 loss to the Chiefs, Jackson appears to be trending toward missing a second straight game Sunday against the Rams. If Jackson ends up being ruled out for the Week 6 contest, Cooper Rush would be on track for another starting turn for the Ravens before the team heads into a Week 7 bye.