I injured my left leg thigh in a football match two weeks ago. It was from someone s knee hitting my thigh. I thought nothing of it and carried on playing the rest of the match. It wasn t until after the match that I noticed I could not bend my leg backwards without getting this terrible sharp pain in my thigh. And I still have the pain two weeks later with quite a big lump on my leg but no sign of bruising. It doesn t hurt when my leg is straight but when bending it, it is very painful. Any ideas?