It is unlikely that you would be 100% in this short time frame, as normally although pain may normalize, significant biomechanical, strength and proprioceptive deficits remain.

What you perhaps want to do is look at what your sport requires, eg. Muscular endurance or strength, or stability etc. ANd train for that specifically. At event time, use a brace or external support that will prevent further injury and protect you during the event so that you may perform (barring any safety issues at hand)

Early return to sports is often fascilitated by external aides (ie. belts, braces, tape).

So something along this lines is perhaps feasible