"Vincent Jackson will play against Kansas City.

The others? It's not so certain.

The Chargers top wide receiver joined No. 2 wideout Malcom Floyd, tight end Antonio Gates, defensive end Corey Liuget, strong safety Bob Sanders and running back Mike Tolbert in missing practice on Thursday. The reason was listed as "abdomen" on the injury report, but head coach Norv Turner made a point to distinguish between an injury and the "soreness" he said Jackson was experiencing."