Lee Mason will be in charge of Watford's FA Cup fourth round game against Manchester United, if they get past Tranmere Rovers on Thursday night.
The Hornets are set to travel to Prenton Park for the rescheduled replay after it was called off due to heavy rain last Tuesday.
The winner of that game will host the Red Devils in the next round of the competition and Mason will be the referee.
The last Watford game Mason oversaw was in fact the Premier League fixture against United, with Watford coming out on top that day thanks to second-half goals from Ismaila Sarr and Troy Deeney.
He will be assisted by Simon Bennett and Daniel Robathan, while Darren Bond will be fourth official and Simon Hooper will be VAR, if the game is held at Vicarage Road.
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