Interesting to read that. I was playing a lot, then joined a gym and then the soreness went away post match and the next day. Started hitting with better players this week and the soreness is back. Maybe that means I'm finally hitting properly... I'm getting all sorts of weird stuff aswell. Today the list is: Neck twinges Golfers Elbow Sore hand (middle of palm) Sore hand (right index knuckle) Stiff back Sore knees Plantar fasciitis It's great being 35 on hard courts!