Former AS Roma coach Fabio Capello is unsure of the future of Daniele De Rossi.

De Rossi has been linked with Manchester City as he struggles to win over the confidence of coach Zdenek Zeman.

"I gave De Rossi his debut at Roma," said Capello. "He is a great player, but has to adapt to Zeman's ideas. I don't know what his future will be. The important thing is that he's happy."