What was your nastiest fall on a tennis court? I had mine yesterday. That morning eight of us met for a clinic with a pro, outdoors. After about 10 minutes, it started to sprinkle, mist, spit and otherwise threaten to rain. The forecast didn't call for rain, so we figured this would pass quickly. After a bit of this, the pro called us over and asked us if we wanted to continue. It was decided that we'd do things that didn't require much movement, and if the rain kicked up we would quit. The courts were a bit mossy on the shady side, so we stayed away from those areas. We hit volleys for a while, and the skies cleared. We did the clinic without incident, although there were a couple of times I slipped a bit while running wide for a ball. Afterward, I stayed and hit with a friend, and I was on the mossy side. By then, the sun had been out a couple of hours and the courts were dry. When she hit to my backhand, I let the ball go unless I was sure I could return it without going into the (now dried) mossy spot. Then she hit to my backhand, and I decided to try to play it. I backed up, hit the ball, and pushed off to return to the center. Apparently, the balls of my feet were on a wide crack that had some slime in it. Both feet flew out from under me backward, pitching me forward. I landed on both hands and both knees, my racket flying away from me. I can't believe I didn't hurt my wrists. The only thing that really hurt were my kneecaps, because I landed on them. Just a little blood running down one leg, so we kept playing. It hurts like the Dickens now, though. I mean, I have dodgy knees on a good day, so the last thing they need is to be slammed into concrete. All of my previous falls have been fairly minor. Most have been due to moisture on the courts, though.