Manchester City would only sell Nathan Ake this summer if they secure a replacement.
The Dutchman has been linked with a return to his former club Chelsea, who are desperately trying to reinforce their defensive stocks.
However, City are also struggling in the centre-back department.
That means they wouldn't allow Ake to join Chelsea without signing a replacement, per the Manchester Evening News.
The Netherlands international spent six years at Chelsea before joining Bournemouth in 2017.
