And so much of his time training was with Cheng, who could mimic everything Waldner did, from his serve and serve returns, to his forehand loops and drives, etc.

• 他与成进行了很长时间的训练，成模仿瓦尔德内尔的所有一切，从发球，接发球，到正手弧圈和抽杀等等。