Real Madrid captain Iker Casillas reckons Manchester City goalkeeper Joe Hart would be perfect for his club's arch-rivals Manchester United.
The Red Devils' current first-choice, Edwin van der Sar, is currently on the evening of his career as he will turn 40 next month. And despite the Dutchman recently maintaining that he currently entertains no thought of retirement, there has been a fair amount of speculation concerning who could replace the 'keeper at Old Trafford.
And the World Cup winning shot-stopper reckons if City are unable to offer Champions League football next term, the 23-year-old would leave to join a club like United to play on the European stage.
"Like so many of City’s players, Hart needs to play Champions League football. If he doesn’t get it, he won’t stay," Casillas told the Daily Star Sunday.
"Teams like Manchester United and AC Milan have ageing keepers and Joe would be perfect for either of them.
"I think it’s fine if you want to go and be part of the revolution at City.
"But I would suggest all players write clauses into their contract about being able to leave the club if they don’t make it into the Champions League."
England boss Fabio Capello had recently maintained that Hart can have a long and fruitful career as the nation's No 1, and the Real custodian agrees with his former boss while insisting that the City shot-stopper has the potential to be the best in the world.
"I totally agree with Capello that Joe Hart can be up there with the best in the world," Casillas said.
"If I am being honest, over the last five years I don’t think there has been a keeper close to Gigi Buffon, or myself. But from what I have seen of Joe Hart, he really can be great.
"When Buffon and I are well into our thirties, Joe will be at his peak. And I expect him to be the No.1 keeper in the world. Everything he does is so natural and he has that goalkeeper’s instinct, which you can’t just learn.
"Apart from a handful of games with England, he hasn’t played at the top level yet and, when he does, he will get even better."