Unfortunately not. You can walk quite fine on a completely torn ACL (speaking from experience). It is your balance when making quick stop/start moves - as you do in Football, Basketball, Tennis, etc. that is impaired.
If it is a partial tear, recovery depends on whether the doctor recommends surgery. Surgery + mandatory rehab is 6 months minimum. But for a relatively minor tear, rehabilitation short of surgery can work in which case it can be less - potentially 3-4 months.
We really dont know until Cugat comes out with something - neither do any of the reporters despite ESPN/TNT's pronouncements. I still think it is odd that that that report from El Larguero came out claiming no serious damage.