Pep Guardiola believes his Manchester City team will have to improve to win the Champions League despite recording a memorable victory at Real Madrid.City stunned the Spanish giants at the Bernabeu on Wednesday - and heaped the pressure on under-fire Real boss Xabi Alonso - as they came from behind to win a compelling encounter 2-1.

Pep Guardiola believes his Manchester City team will have to improve to win the Champions League despite recording a memorable victory at Real Madrid.City stunned the Spanish giants at the Bernabeu on Wednesday - and heaped the pressure on under-fire Real boss Xabi Alonso - as they came from behind to win a compelling encounter 2-1.