The court for pickleball is smaller — less than half the size of a tennis court. But there are a lot of weird rules. I never could catch on to serving the right way. Too many years of tennis — I think. The muscle memory just refused to be reprogrammed. But you’re right — every nurse pal I have that’s still employed in healthcare has shared that they’re seeing a lot of pickleball injuries. My left knee is the reason I don’t run anymore. But I can swim like no one’s business. :)