Mike Dean, the man who sent off Nordin Amrabat the last time he officiated a Watford game, will take charge of the match with Bournemouth on Saturday.
Dean officiated in three Watford games last season, showing seven yellows and one red card. He gave Amrabat his marching orders against the Hammers for two yellow cards, meaning the Moroccan missed the FA Cup semi-final with Crystal Palace.
Dean also took charge of the 2-0 home win over Norwich and was the man with the whistle in the lively home game against Chelsea where Juan Carlos Paredes and Diego Costa clashed.
Dean also officiated the last league meeting between Watford and Luton, in 2006, and was the man in the middle for the playoff final win over Leeds United under Aidy Boothroyd in 2006.
Dean has officiated in five matches this season, brandishing 22 yellow cards and at average of more than four a game and sending off Adnan Januzaj.
Watford have the worst disciplinary record in the league while Jose Holebas sits at the top of the yellow card table with Diego Costa.