"Samir is a player who has incredible qualities but a productivity that bears no comparison with his talent," Mancini told the Manchester Evening News. "He didn't understand that you always have to give your best.
"It really pains me. I did everything so that he'd come and he settled for the minimum. He's a player who has the ability not to be a good player but to be a world-class player. What a pity that he won't even play in the World Cup."
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