Manchester City are allegedly demanding a buy-back clause in any deal involving the sale of Kelechi Iheanacho.
The Sky Blues want the right to bring the Nigerian international back to the Etihad Stadium for £35m should he leave this summer, reports The Telegraph.
West Ham United and Leicester City have been strongly linked with Iheanacho, who is said to have an asking price of around £25m, during pre-season.
The 20-year-old played just 528 minutes of football in the Premier League for City last season, although he still contributed four goals and three assists.
Crystal Palace have also been linked with a summer swoop for Iheanacho.