Nedum Onuoha has pledged his future to Manchester City for the next four years after signing a new long-term contract.
The England Under-21 international broke into the first team at the City of Manchester Stadium two years ago and made 19 appearances last term despite being troubled by a series of niggling injuries.
The 20-year-old was a mainstay of the England side coached by former City boss Stuart Pearce at the recent European Championship in the Netherlands.
"I'm delighted that the contract is all sorted out now. I just want to get back to working hard and playing well when pre-season training starts again next week," the Nigerian-born defender told the club's official website.
"I like to think that I've been improving game-on-game and season-on-season recently. When I compare myself from now to two years ago, I think there is a massive difference in my performances."
Meanwhile, the promising defender has shrugged off fears over hit fitness and claims he will be ready to start pre-season training despite injuring his groin in England's semi-final defeat to the host nation last week.
"I just have a slight groin tear," he continued. "I think it's only a two-week injury but I should be back in training next week.
"I may have had my own separate regime when I was going back to Carrington anyway, because my last game with England was only two weeks before pre-season resumed."