On the NFL injury report, the Chargers listed LB Shawne Merriman. Thursday and Friday's practice reports are just a description of whether they practiced in full, were limited or missed practice.
Merriman has been limited with an Achilles' injury.
On the final injury report on Saturday, the team will list whether a player is probably, questionable, doubtful or out. From what it sounds like, Merriman may be listed as doubtful.
While his activity has increased and he's recovering well, there's little chance that he'll play Monday against the Kansas City Chiefs.
The team will probably will list him as questionable just in case but several San Diego media outlets are saying the chances of him playing on Monday night aren't very good.