The Nigerian has been sensational for Quique Sanchez Flores' surprise package, scoring 10 times this season.
And the new mega-money television deals coming into play next year mean Watford will reject all advances, regardless of figures laid on the table.Ighalo turned down a £10million move with extortionate wages to Chinese side Hebei Fortune last summer before penning a five-year deal at Vicarage Road.
Watford want to keep the 26-year-old alongside Troy Deeney as Flores looks to build on an encouraging start to their Premier League comeback. Watford are seventh going into
Sunday's clash against Liverpool.
A club source said: 'You just need to do the sums. Even an offer of silly money would be nowhere near what the club would get for staying up.'
