"My advice is for players to go where they want to go", he told a news conference ahead of Friday's International Champions Cup clash with Borussia Dortmund (9:05 p.m. ET, ESPN2).
Although he has been targeting a replacement for Toure for the past two transfer windows, Guardiola says he is unsure whether he will buy one as he has options in Fabian Delph, Ilkay Gundogan and Danilo.
The Blues started brightly, pressing high and seeking to find joy via the wide men - particularly through Harrison on the right, who was at the heart of our best attacking moves in the opening 45.
There was a healthy crowd of 34,629 inside Soldier Field and although a young City side held their own early on, Dortmund created the better chances with Gotze pulling the strings together with Pulisic.
The lead was nearly doubled inside five minutes but Alexander Isak could only find the side-netting, having rounded Bravo.
Debutant Mahrez nearly equalised on the stroke of half-time but his free-kick was kept out by Hitz.
The forward was then denied at the near post by Hitz, having done well to fashion a yard of space for himself inside the box.
Former England goalkeeper Joe Hart, meanwhile, is poised for some surprise playing time in the U.S. having returned to the club from a loan spell at West Ham United. It was the spotlight moment of a solid preseason performance for the German midfielder.
City were heavily linked with the Italy global.
Guardiola is quoted as saying by Metro: "No, we are not disappointed". It is really good for the future.
"He is a player who is one of the most incredible professionals I have ever met".
Fellow pundit Ian McGarry explained: "They've made an offer to Real Madrid for Mateo Kovacic and that's been priced out by the £80m request - which I do think is ridiculous for a player who has not been a regular in the Real Madrid first team but who at Real are trying to get a lot of money in for to pay for their Galacticos".
"It was a good test". He also notes how good a player he is.