Even though Joe Hart is not having a brilliant season -he was benched early on by Manuel Pellegrini-, Real Madrid would want to sign him away from Manchester City for 25M£, according to the Daily Star. Real Madrid have been linked to some goalkeepers like Thibaut Courtois, Espanyol's Kiko Casilla and also David De Gea in recent weeks.
Reports indicate that either Diego López or Iker Casillas will be leaving the club this summer, and while it's true that all four of those potential signings are still very young, they would still be competing for a starting spot against López or Casillas.
Joe Hart is also England's goalkeeper. He was one of the main reasons behind Manchester City's Premier League success back in the 2011-2012 season, but his form isn't that great now and Manuel Pellegrini decided to start Romanian reserve Costel Pantilimon for some matches. Anyway, Hart is back in his starting spot and will be facing Manchester United in the Manchester Derby this Tuesday.