If he picked it up last week, the team should have either said:well he says injury from last week.....so he may have picked up a knock in our playoff games or our training
1. No, you’re injured so you cannot report for NT duty.
Or
2. You’re not injured too badly, so you can report but you’re not allowed to practice/play unless given 100% clean bill of health.
I would guess #2 took place and he’s simply rehabbing. My fear is that he’ll push though if “close” to having zero pain because that’s what players do to prove they’re tough enough and not injury prone. Hope he is sensible.