How long does it take for someone to recover from a strained acl mcl and calf?

Someone with a partially or completely torn MCL might have swelling and pain in the first 24 hours of injury. This injury can heal on its own after 1 to 6 weeks of resting the joint. A mild MCL injury or grade one sprain should take 3 to 6 weeks to make a full recovery. A more severe grade 2 or grade 3 injury may take 8 to 12 weeks.