Da skers and BW both seem to think something happened, and these guys are not often wrong.
If I were Fonzie and I pulled a muscle slightly, to the point where I'd be "limited" for a couple weeks of practice, it wouldn't even be worth qualifying to the media as 'getting hurt', you know? I went running a few nights ago and tweaked my foot. But I'm also "good" to go.
Doesn't mean nothing didn't happen.
I have no idea whence the ACL stuff came. It sounds like they did a MRI on him, which sounds now like a measure of precaution. Actually, I'm not even sure where the MRI stuff came from. ???
Anyway, if it was a precautionary measure, then my best guess is that at some point during the day, there was worry about Fonzie, but after further investigation then it turned out to be just a scare and he's basically "fine". Same result, that there's nothing to worry about. But I wouldn't say the worry was completely fabricated by some random people of questionable intentions either. I mean, why? More likely it was some legitimate worry that just didn't amount to much.