"It will be a challenge because, as I said already, we have eight games in a row during one month; this is something that should never happen in football," he stated.
"Obviously it's not normal to happen, so until the FIFA break, we'll be playing every three or four days; it's not normal and not acceptable, it's very difficult to cope with.
"So I really hope that players can sustain their efforts, and most of our opponents will not be in this situation. I saw the other teams' calendars, and they will not be submitted to this kind of effort, while we will," Cardoso concluded.