I have only played tennis twice in my life, but I really liked it.
I would say that tennis is among the most tiring of all sports. Really hard work.
Do you play much? I'm not very coordinated.
No because you are correct. You kind of have to be one with your racket and you have to make aggressive shots to overpower your opponent.
Wow, that's a very astute analysis.  I did take a P.E. class in college once where we learned to play Pickleball. 
Ah I believe I have played that before as well. Racket sports are very difficult and there is a huge gap between the talented ones and non talented. 
This is true. I know an 82-year-old woman who loves to play Pickleball. How old do you think the sport of tennis is?
The first Wimbeldon tournament was 1877, so the sport wasn't around for that long before she was born. Crazy that we are only in the 3rd century that sports are such a huge thing!