Can't say for sure. Here's what I see after looking around though. After scouring twitter, the only one's I'm seeing "confirm" it are Auburn fans who, after visiting their twitter page, are the kind that are constantly use the term "bammers". Also, thinking about it, I think we probably would have heard something definitive from someone at least a little more reliable. Another thing is, and I'm no expert on this or any kind of doctor or something, but the "reports" are saying that he's meeting with Andrews today (Monday). From what I can recall when a player tears his ACL they usually get to repairing it asap. I highly doubt that if he tore it Saturday that they would wait 2 days just to meet with Andrews. Of course that's just speculation.
It's possible there's something to it. And if it is it could be something along the lines of a partial tear or something like Chapman had. Who really knows at this point? Guess we'll hear something one way or the other soon. If I was a betting man though, I would bet on it being a hoax.