The indoor courts we have here are carpet with some artificial sand over them.
They have it in green and red color and renew the sand from time to time.
I guess the sand make it closer to clay.
I play there when it is rainy outside and I have to adapt my game and strokes as normal hits...
Maybe if Americans modify tennis in the way they did with rugby and cricket for example, turning them into american football and baseball.
Like that there would be a lot less of nations playing that new sport and then americans can excel on it.
PS. calm down, it was a joke :)
That is right to the point !
Someone saw the interview of Djokovic on Eurosport, when he does the Rolad Garros Quizz, and he fails all the questions and at the end apologizes saying "I know nothing about tennis history" ?