Jie went to Brad Gilbert's tennis lecture in beijing yesterday.
The lecture is a part of Nike tennis trainning camp,Jie&Zi are sponsored by Nike,so they also went to the lecture,and learned some useful skills from Brad.
Brad once coached Andrew Agassi and Andy Roddick,he is one of the best tennis coaches in the world.
After the class,Jie had some communicaitions with Brad.She asked him how to improve her weak serve.
Brad teached Jie how to improve serve with a rugby,and showed Jie how to train.