Man In The Middle: Robert Madley
This will be game number three for Madley this season, his second Premier League game, with him also being in charge of Charlton's season opener at home to QPR in the Championship, with Aston Villa's home draw against Sunderland two weeks ago being his last fixture.
He was also in charge of the 2-2 draw between Tottenham and Stoke last month.
In those three games, he has dished out twelve yellow cards, and no reds.
Looking at the man from West Yorkshire's stats last season, he took the reins of thirty games, which included Premier League, Championship, League One and Two clashes.
He gave out ninety-four yellow cards and dismissed five players over the course of them thirty games.
The last Watford game that Madley managed was last season, as the Hornets defeated Ian Holloway's Millwall at Vicarage Road in November, with six players being sent into the book on that day.