Maurizio Sarri believes Real Madrid target Eden Hazard is irreplaceable at Chelsea.
Hazard's wonder goal set Chelsea en route to their 2-0 Premier League win over West Ham at Stamford Bridge, with the Belgium star also bagging a late second.
West Ham's fans taunted Chelsea by singing "He's off to Madrid", with the Blues' board apparently holding out for £100million from Real to complete a transfer this summer.