Manchester City boss Pep Guardiola has hinted at taking Riyad Mahrez off penalty duty after their 0-0 draw at Borussia Dortmund.

Mahrez fluffed a second-half spotkick in the Champions League encounter.

Guardiola said: "We will see what happens. Of course it's a problem - we have missed 24 or 25 penalties, most of them in the Champions League and it's too much.

"I admire the courage to take penalties but this is a problem and we have to improve. These are the little margins in this competition. Last season he scored a lot in important moments, here when we got to the semi-final.

"I admire the courage but of course we have to improve."