The Chargers have issues on the offensive line and those problems could remain over the long-term. Kris Dielman and Marcus McNeill are on injured reserve with their respective injuries -- Dielman following a concussion and seizure and McNeill with an unspecified neck injury that is the latest of his ongoing neck ailments. According to sources, Dielman is considering retiring. Dielman, a four-time Pro Bowler, went on injured reserve Nov. 6, two weeks after suffering a concussion in the fourth quarter against the Jets and then a gran mal seizure on the team's return flight to San Diego. It is believed Dielman can return, but the scare of the seizure and ongoing recovery and uncertainty regarding brain injuries has him concerned enough to have broached the topic of retirement with those close to him.