West Ham United have entered new contract talks with Vladimir Coufal.
The Czech Republic fullback enjoyed an outstanding season with the Hammers last season.
Sky Sports says Coufal has now entered new contract negotiations - though his camp are unhappy with West Ham's opening offer.
Karol Kisel confirmed towards the end of last season that talks were planned with West Ham about a new deal.
Coufal joined West Ham in October 2020.
