Fixing the knees and shoulder is easy. I don't play anymore cuz the damage on the hip from the car wreck finally got too bad.Back in the olden days I played a lot of competitive volleyball. Used to travel the East Coast playing tournaments before the AVP went under. Mostly it was all fun, but occasionally it would get ugly. Now I just have two bad knees and a wrecked shoulder. Still play every so often. No longer doubles though, way too old for that nonsense.