Чжан Цзикэ и Фан Бо учат тебя самому крутому подаче! — обратная боковая подача!

0:00 grip 2:10 underspin serve 5:55 topspin serve 9:08 Zhangjike teaching his students Become a member of this channel to enjoy the following benefits： watch 10videos in advance，and 30 Fangbo tuition videos    / @kakaluser