Ravens defensive tackle Haloti Ngata is doubtful to return to the game after spraining his knee. It may free up some things for the 49ers with the read-option and mean some better opportunities for Frank Gore on cutbacks inside. Join the conversation at <a href="https://www.rebelmouse.com/SuperBowlDispatches/"><strong>our Super Bowl social hub</strong></a> or <a href="http://www.facebook.com/SFGate"><strong>Facebook page</strong></a>