City sign Nastasic as Savic leaves City

Manchester City have announced the signing of teenage Serbia defender Matija Nastasic from Fiorentina for an undisclosed fee.

The 19-year-old joins the Barclays Premier League champions in a deal which also sees Montenegro international Stefan Savic moving in the opposite direction.

Nastasic is the fourth player to join City on a hectic final day of the summer transfer window.