The Spaniard insisted the most expensive player in English football history will be "so important" for his side as the season progresses
Pep Guardiola insisted Jack Grealish had "an incredible debut" against Tottenham, praising Manchester City's £100 million ($139m) man for showing "personality" in the 1-0 defeat.
Grealish made his Premier League bow for City at Tottenham Hotspur Stadium on Sunday, having been lured away from Aston Villa for a British record fee earlier this summer.
The 25-year-old played the full 90 minutes against Spurs, but was ultimately powerless to prevent the Manchester outfit from slumping to an opening weekend loss for the first time in 10 years.