Man In The Middle: Mark Clattenburg
This will be Clattenburg's third game to referee this season, having previously refereed in two Premier League games, as Bournemouth hosted Aston Villa on the opening day and Chelsea faced West Brom last week, which included a John Terry red card.
In those two games, Clattenburg dished out seven yellow cards in the clash at Dean Court, whilst he sent three players into the book at the Hawthorns, in addition to that red card.
Having a look at last season's stats, the man from County Durham refereed in games which included the Champions League semi final between Bayern and Barcelona, in addition to the UEFA Super Cup Final between Real Madrid and Sevilla.
Overall, he took charge of forty-seven games, and handed out a whopping one-hundred and seventy-two yellow cards, whilst dismissing only five players.
The last Watford game that Clattenburg took charge of was one to forget for Hornets fans,as it was in the Play-Off semi final in 2008, as Aidy Boothroyd's Watford were hammered 4-1 away to Hull City.
Two yellow cards were handed out in that game.
Clattenburg will be assisted by both Simon Beck and Jake Collin at the Etihad on Saturday, whilst James Adcock will be between the dugouts.