A growing story in San Diego: Shawne Merriman is considering his options when it comes to surgery to repair what he says is a torn PCL in his left knee. He has already seen Dr. James Andrews, the renowned expert on knee injuries for NFL players, and more information is being gathered. At this point, it could be anything from playing through it in 2008, to a minor procedure, to season-ending surgery.
There also appears to be increasing tension between Merriman and the Chargers, at least according to the linked article by Kevin Acee of the San Diego Union-Tribune, regarding Merriman's increasing off-field business and media concerns. The former issue could leave the latter a moot point if Merriman's out for the year, but we'll just have to wait and see.