In today's Sun, colleague Ed Lee wrote about Ravens' backup offensive lineman Mike Kracalik having to step in as the starting left offensive tackle for now after tackles Adam Terry and Jared Gaither -- the immediate successors to the retired Jonathan Ogden -- were sidelined by ankle injuries.

Kracalik seems like a good guy (Lee details some of the issues the player went through at San Diego State when he felt compelled to make public an event about which some Aztec fans would have preferred he keep quiet) and he certainly has impressive size (6-8, 340). But left tackle is among the most demanding and critical positions on the field. Inexperience at that spot can lead to big problems for your quarterback and as a result, the entire offense.

But we're still in the early stages of training camp and a lot can and probably will happen between now and the opener against Cincinnati on Sept. 7. However, when you consider just a few training camp mishaps have the Ravens down to putting the health of whoever is under center in the hands of a player who has bounced among practice squads, waiver wires and active rosters, it can make you a little uneasy.

Ravens fans have had the luxury of the reliable presence of Jonathan Ogden around for more than a decade. Admittedly, in the previous couple of years Ogden had missed time but he still helped hold the delicate puzzle along the offensive line together. Now, we're about to realize how steep the drop-off can be when a Hall of Famer like Ogden is no longer around.