Manchester City boss Pep Guardiola admits he wants more from John Stones.
Stones candidly admitted to making too many mistakes earlier this week and Guardiola pushed him to improve.
"He's a young player - it's not too many mistakes," Guardiola said.
"If the player is open-minded then you become stronger.
"Football is more than mistakes and success. If he pushes himself to want to be better then he will do it but it depends on him."
