Toure was missing from the matchday squad for the 5-0 mauling of Liverpool at the Etihad Stadium.
Managed by Giovanni van Bronckhorst, who knows all about the type of football Guardiola is trying to implement from his time as a Barcelona player, the Moroccan worldwide did however admit they would have to be very careful due to the ability at the Spaniard's disposal.
Manchester United manager Jose Mourinho believes that the English teams in the Champions League this year are "second level" to clubs like Real Madrid, Barcelona and Bayern Munich.
But captain Vincent Kompany missed training on Tuesday and is expected to miss the Champions League opener with Feyenoord with a calf strain that ruled him out of the game against Liverpool.
"Now is just the warming up and in February when us English teams, we are trying to survive after the winter period, they will be fresh and ready after these warm-ups". This would make sense with Guardiola saying Yaya's absence was for "sporting reasons". Six players finished their contracts last season and Yaya is the only player who we decided could stay because he is a special player.
But Kompany is unlikely to travel to the Netherlands after suffering the injury to his calf on worldwide duty with Belgium.
Asked whether Toure would play soon, Guardiola said: "Hopefully - it depends on the player".
Defender Nicolas Otamendi also posted an image, showing off the luxurious flying conditions enjoyed by the City squad for a flight lasting less than an hour and a half. We have to win respect in Europe.
The Brazilian goalkeeper has been training in a scrum cap and Guardiola will leave it until tomorrow to decide if to start with him or not. "Of course it can happen but we will see", he said.