Yesterday morning I was playing volleyball with a partner and we collided. Her knee hit my outer thigh, right above my knee. The muscle tensed up making it difficult to bend/squat and is occasionally painful to put weight on (an example would be walking up stairs). I ve been icing/compressing/elevating it, but it s still quite painful even with pain medication. Is there anything else I should be doing? The pain is sometimes sharp, and causes my knee to buckle. If I m not moving then it s only somewhat sore.