does anyone here sprained their mcl (medial collateral ligament) before? how many months did it take before you played again. i sprained my mcl in my left knee last september. i am right handed so my left leg is more powerful knee. according to the doctor, i should give my sprained mcl 6 months to heal. so right now, i can't play badminton. does anyone know any excerices that would help strengthen my left leg/knee muscle? Please advice. Many thanks in advance.