Manchester City boss Pep Guardiola is in the hunt for £12m-rated Crystal Palace left-back Patrick van Aanholt as defensive cover for the injured Benjamin Mendy.
Despite Fabian Delph performing admirably on the left side of the backline with Danilo also being able to cover, the Eagles' Dutchman is on boss Guardiola's transfer wish-list.
The Dutch defender only arrived at Palace from Sunderland in January but struggling Selhurst Park supremo Roy Hodgson could sell - in a bid to raise funds to strengthen other areas during the January transfer window
According to The Sun Guardiola is demanding a defensive specialist in what he sees as a key position as he steers City towards the Premier League title and a tilt at the Champions League.