I think it really depends on what the injury actually is, and what he's doing behind close doors (even if not fully practicing). If it's a tear or sprain situation, I agree with you. If it's just pain/discomfort because of something that can't get a lot worse (like bone growth to an extent), then it might just be about pain management and time.
it sucks not knowing lol
If they are telling the truth about him having pain I don’t think he is going to be pain free the entire season. He is going to either play with some pain or sit out. I do think Monday is really the telling point if he practices. From what I understand they will basically have all the guys who will play the chargers game practice together and start to prepare. Everyone else will be preparing for the final pre season game.
I still would put my bets on him working with the wide re receivers in practive even if he isn’t doing full team drills.