Wonder if you hold him to later in the weekend. If he is really feeling good, I guess not. But it would be nice to know you have him available with a day or two extra rest/rehab particularly if we could skate by without him on Friday. Tough call.
If it came down to it, I'd rather have him at 100% Sunday than 80% Friday. Not saying it would but if he's not pretty close to 100% Friday I'd hold him.
But yeah... I hate saying anything de facto, but I knew it was him Sunday. He was walking pretty normal and not on crutches or in a brace, and I doubt they'd let him do so if they felt anything was in jeopardy. If they really thought it was a ligament, most docs will put them in a brace at the very least.