Watford and Chinese club Changchun Yatai have agreed a fee of £20m for striker Odion Ighalo, according to Sky sources.
Head coach Walter Mazzarri confirmed on Friday that the club was considering a “very important” offer for the striker and the two clubs have now agreed the fee, with only a few final details sort out.
Ighalo – who has scored just twice this season following his superb 17-goal return last term – has agreed personal terms with the Chinese club.
Mazzarri’s forward options have been boosted with the arrival of Mauro Zarate on a two-and-a-half-year deal from Fiorentina, while M’Baye Niang has also joined on loan.
Ighalo is unlikely to be the only player to leave Vicarage Road before the transfer window shuts on Tuesday.
Hull City have made a £3m bid for midfielder Adlene Guedioura, while Ecuadorian right-back Juan Carlos Paredes is a target for Greek side Olympiakos.
Sky sources understand Birmingham City are set to sign Jerome Sinclair on loan until the end of the season.