By Daniel Bates In case you haven’t heard the Cincinnati Bengals are in the Super Bowl. But the team could be without a key rotational member in the trenches come Super Bowl Sunday. As offensive lineman Jackson Carman missed his second straight practice with a back injury. According to Bengals reporter Ben Baby, Carman didn’t participate in Saturday’s open practice session. Carman played a good deal of the Bengals’ offensive snaps in the AFC Championship game Sunday. Rotating with Hakeem Adeniji at the right guard spot. An Ohio native, Carman’s football career began at Fairfield High before pl…