Twelve months ago, the Republic of Ireland star was firmly established as City's number one. Now, Given is at a crossroads in his career.
Shunted down to second choice due to Joe Hart's impressive form, the former Newcastle man is keen to leave City and reignite his career. Yet Mancini has warned Given it is not certain such a move will be granted.
"It is not a simple position," he said. "You can change the other players every game but the goalkeeper is different.
"That is the only reason why Shay has not played so often because he is a fantastic goalkeeper."