Guardiola has message for City rivals: 'We can only get better'

Fitness issues no obstacle in beating Chelsea at Wembley

LONDON - Pep Guardiola has warned Manchester City's Premier League rivals that the champion is still well below its peak despite powering to a 2-0 win over Chelsea in the Community Shield on Sunday.

Guardiola's team wrapped up its preseason preparations by sweeping aside Chelsea in the season's curtain raiser at Wembley Stadium.