提起過去經驗,喬帥前在記者會上提到,「在中國我們也會遇到許多困難的狀況,我想每個球員都不會否認,中國在空氣品質上可能是最糟糕的。」並曾建議,每個球員在北京應該配給一瓶氧氣罐來協助球員呼吸。 "Djokovic revealed that he had experienced air quality issues in tournaments in China. He once suggested that the quality of air is so bad at the China Open in Beijing that players should have access to oxygen tanks on the court to help them breathe through the smog."