In the second part of our diary from Switzerland, we reveal what happened when tennis legend Roger Federer popped by the camp and assess how the players are coping with double training.

• 在我们瑞士第二篇日记里，我们揭露当网坛传奇费德勒出现在训练营发生什么事，同时我们揭露球员是怎么完成一天两训魔鬼计划的。