Pep Guardiola challenges Man City to win back-to-back Champions League titles

Pep Guardiola wants Manchester City to back up last season’s Champions League success (Martin Rickett/PA)

Pep Guardiola has challenged his Manchester City side to achieve something special and win back-to-back Champions League titles.

The treble winners begin the defence of their European crown as they host Red Star Belgrade at the Etihad Stadium on Tuesday.