Manchester United goalkeeper David De Gea maintains he must adapt quickly to Premier League life in order to fill the void left by Edwin van der Saar.
The 20-year-old completed his move from Atletico Madrid this summer but got off to a nervous start as Manchester City's second goal, a long-range strike by Edin Dzeko, was the result of an error on the part of the Spaniard.
De Gea has refuted contrasts between La Liga and English football and insists he needs to settle in quickly at Old Trafford.
"No, football is football here and in any country," he told Sky Sports.
"I have to adapt quickly and improve on the whole of my game."
Manchester United sparked an impressive revival after finding themselves two goals down at half-time. Chris Smalling sparked the turnround before Nani's brace ensured the Community Shield would be heading to Old Trafford.
"The two goals we conceded in the first half stopped us in our tracks but in the second half we were able to claw back and I think that's the important thing. I'm very happy about the victory," said De Gea.
Nani's first would be of particular encouragement to Manchester United fans as his deft chip over Joe Hart was the finishing touch to a fine piece of build-up play involving Tom Cleverley, Anderson and Wayne Rooney.
"It was a beautiful goal and the lads in the dressing room were very happy," said De Gea.