The players head off to join up with their national teams
Those players not on international duty will return to training on 5 September.
Wilmar Barrios will join the Colombian team and will take part in friendly games with Brazil and Venezuela (7 and 11 September). Robert Mak is with Slovakia and will play two Euro 2020 qualification matches with Croatia and Hungary (6 and 9 September). Mica Mevlja is with the Slovenian team for qualifying games with Poland and Israel (6 and 9 September).
Sardar Azmuon has been called up by Iran for a game against Hong Kong.
The remaining players will resume training on Thursday 5th September. On Sunday, the blue-white-sky blues play a friendly against Sochi at the Gazprom Academy Stadium at 14:00 Petersburg time.