Brentford boss Thomas Frank has spoken of his admiration for Watford counterpart Claudio Ranieri ahead of tonight's clash.
Both teams came up from the Championship this season.
Frank said, "This is the third time I meet them and this is the third head coach I face. It has not been 10 years, but 12 months.
"Ranieri is a different coach than Xisco Munoz and I think he has made the team more offensive. They have created quite a few chances and have some skilled players offensively.
"I'm sure they think they're a bigger club and a better team than us, and that being said with the utmost respect.
"I talk about how many Premier League matches they and we had in our luggage, the value of the two teams, and the experience from 'the grand maestro' Claudio Ranieri, who has won the Premier League, and then there's me - a young Dane."