Toure is keen on leaving the Spanish giants after being left out against Real Madrid in the El Clasico on Sunday night.
His agent Dimitri Seluk said: “We are not happy with this obviously. He is not playing. It is very strange not to be having minutes. If a team like Chelsea or Manchester United would come to us, we are obviously open to talking without any kind of problem.
“Yaya won’t just sit and wait. He is 26 years old and is nominated for the Golden Ball award. It is ridiculous for a player like this not to be playing.
“I don’t know what will happen, but I can say once thing for sure: my player won’t be remaining on the bench. This is 100 per cent for sure.
“It would be a mistake for Barca to let him go. For instance, when Liverpool sold Xabi Alonso, Liverpool went downhill. That’s the same situation here. Yaya is a key player in organising the midfield and in attacking.”