Receiver Braylon Edwardsmight not be the only 49ers offensive starter out of the lineup for Sunday's game against the Cincinnati Bengals.Fullback Moran Norris was seen in the locker room Wednesday on crutches wearing an orthopedic boot on his left foot. Norris said he was fine, but it appears questionable whether he will practice this week due to the undisclosed injury.Norris played just four snaps in the second half of the 49ers' 27-24 overtime loss to the Dallas Cowboys on Sunday.Rookie Bruce Miller is the second fullback on the roster. The 49ers could also use more two- and three-tight end formations if Norris is unavailable.On Tuesday, the 49ers worked out free-agent tight end Richard Quinn, a source told CSNBayArea.com. Quinn was the Denver Broncos' final pick in the second round in the 2009 draft. Quinn sustained a knee injury in training camp and was waived.While Edwards will not be in the lineup this week, 49ers coach Jim Harbaugh said he expects Michael Crabtree to return to action after missing last week's game with a left foot injury."It's day-by-day," Crabtree said. "I take it one day at a time. It's improving every day."Harbaugh did not disclose how long Edward would be out of action, but he is likely on a similar time frame as safety Reggie Smith, who underwent arthroscopic surgery on Aug. 8 to repair a torn meniscus cartilage. Smith missed the exhibition season but was not limited for the week of practices leading up to the first regular-season game on Sept. 11.Thats the game of football, you have to deal with injuries, 49ers quarterback Alex Smith said. I feel good about that group (of receivers). We got a lot of depth. They know all the positions and it showed last Sunday.
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