Manchester City boss Pep Guardiola believes his rivalry with Jurgen Klopp has helped make him a better manager.
Guardiola will come up against his Liverpool counterpart on Sunday when Premier League champions City visit Anfield.
With Guardiola and Klopp at the helm, the two clubs have been the pre-eminent forces in the English game in recent seasons.
Guardiola said: 'He helped me, his teams helped me, to be a better manager. He put me at another level, to think about it and to prove myself what I had to do to be a better manager.