Pep Guardiola has urged his Manchester City team to go and win next Saturday’s Champions League final and complete the treble as they may “never again” have the chance set up by Saturday’s 2-1 victory against Manchester United in the FA Cup final. City’s win completed the Double and came in the first all-Manchester final in the competition’s history, dating back to 187172. Two Ilkay Gündogan volleys, the first inside 13 seconds to be the fastest goal in the final, proved enough to beat United, who equalised via a Bruno Fernandes penalty. City need to beat Internazionale at Istanbul’s Ataturk Stadium to join their crosstown rivals as the only English clubs to claim the treble.