I always had a powerful serve. It's one of the best in women's tennis. It's very good to have a weapon like that.
After four knee surgeries and hundreds of shots injected into my knee weekly to alleviate swelling and pain, my body is begging me to stop the pounding.
I think players changing coaches is normal.
Nobody says if you hit No. 2 in the world you have to win all your matches.
I just feel exciting.
Age is nothing, can still win the Grand Slam, pretty happy about my age, more experience.